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【全・英】メガメニュー
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Provision of Products that Solve Social Issues

承認:エディタ

In providing products and services, we will continue to search for and resolve not only long-standing social issues but also new or latent issues that emerge in our rapidly changing society, thereby meeting the expectations and trust of our many stakeholders.

Approach to initiatives

TOKYO KEIKI Vision 2030 defines five business domains to strengthen based on the society projected to exist in 2030. It also confirms the relationship between those domains and our current businesses and technologies. Based on this, we put together a list of potential new businesses for the Group to take on as “candidates for growth drivers” and a list of “key points for enhancing existing businesses” so that current businesses may grow. Then, we set to work on the issues that come with these.

Promotion framework

Each internal company promotes enhancement of existing businesses while the Corporate Planning & Administration Office takes the lead in promoting candidates for growth drivers. We established the Business Development Office within the Corporate Planning & Administration Office in April 2023 to strengthen these efforts. Going forward, we will incorporate the progress we make on our existing business strategies and growth drivers in the next medium-term business plan.

Initiatives with candidates for growth drivers

We have set aside the period from fiscal 2021 to fiscal 2023 as a time to identify, incorporate, and develop new growth drivers. We have begun the following initiatives with five growth driver candidates.

• Edge Al* business

We have developed tools that optimize the use of AI on processors for edge AI and have made them available to users for testing. We have also begun recruiting partners in development on our website.


* Edge AI: To enable artificial intelligence (AI) to learn large amounts of data rapidly, AI typically resides on a server in a data center and communicates with terminals (edge devices) via the Internet. By contrast, edge AI can process calculations on-site without going through the Internet. Edge AI technology is expected to find use in agricultural and civil engineering/construction settings, where communication facilities are limited and real-time processing within the terminal is required. Very few companies in the world supply AI chips that can accelerate edge AI processing, and we aim to offer AI chips for different applications than others do.


• Hydrogen & energy business

In addition to hydrogen compressors, which we are working on within our existing businesses, we are collaborating with a partner to make hydrogen stations more compact and available in package form. We have also commenced joint R&D of hydrogen production equipment with the National Institute of Advanced Industrial Science and Technology (AIST).

• Aerospace business

Building on our delivery of microwave amplifiers for small SAR satellites* in our existing business, we partnered with Synspective Inc. to mass-produce small SAR satellites and constructed a space initiatives building where satellites are assembled within the Nasu Plant.


* SAR satellites: SAR = Synthetic Aperture Radar. As they move, SAR satellites emit microwaves toward the earth’s surface and analyze images of the reflected waves to monitor conditions on the ground. Optical satellites used for surface observation cannot acquire images of cloud-covered areas or at night. SAR satellites that use microwaves, on the other hand, can observe ground conditions in any weather, day or night. As such, they are expected to be used for disaster monitoring and prevention and information gathering for infrastructure development. Although these SAR satellites are small and in the 100-kg class (about one-tenth the usual weight), they can capture high-resolution, wide-area images rivaling those of larger satellites. As the heart of SAR satellites, TOKYO KEIKI’s microwave amplifiers have contributed greatly to this performance.


• Railway business

A track diagnosis support system we developed aims to save manpower by automating judgments when monitoring railroad tracks, a job that previously was only done on foot.

• Life sciences

Together with universities and outside R&D organizations, we are conducting research and studies to contribute to medical and health applications of microwave and plasma technology.

Initiatives with existing businesses

• Marine systems business

Having participated in the first stage of the Nippon Foundation’s MEGURI2040 Fully Autonomous Ship Program, we are now taking part in the second stage, which aims for real-world implementation. Other projects include developing products that solve social issues by enabling safety, energy and labor savings, and eco-friendliness. This includes joint development with other companies.


• Hydraulics and pneumatics business

Our hydrogen compressor for hydrogen filling stations is helping to build a decarbonized society. Meanwhile, we are also developing energy-saving and hybrid hydraulic equipment.

• Fluid measurement equipment business

We offer water level gauge systems and fire extinguishing equipment for the disaster prevention market to keep communities safe.


• Defense & communications equipment business

We are meeting ICT needs by developing farm machinery automation equipment that makes agriculture more efficient and by offering microwave amplifiers for semiconductor production equipment. We also provide solid-state radars for marine monitoring that contributes to maritime traffic safety.
  We also develop, manufacture, maintain, and repair products for the defense market to meet rapidly growing safety and security needs.

R&D Initiatives

Research and development approach

Our Group’s products flourish in a variety of fields around the world, including shipping, aerospace, industrial machinery, farming, construction machinery, and social infrastructure. As the manufacturer providing these products, we understand that research and development serves as the foundation of the Group’s management.
  The basic policy of our Group’s research and development is based on our Management Philosophy—“To contribute to society, with a focus on our business of leveraging electronics and other advanced technology to create products that embody functions of human senses: measurement, cognition, and control.” Research and development is carried out based on the technology strategy and R&D plans of our research arm, the Research & Development Center, and is also implemented as part of product development by our internal companies and subsidiaries.

Research and development system

Our Research & Development Center primarily engages in relatively long-term research and development and, in general, the development of products utilizing the center’s results is conducted by the development departments of our internal companies and subsidiaries. In addition, the Center is also responsible for providing technical support for individual projects, and for undertaking research and development that would be inefficient for our internal companies and subsidiaries to perform on their own. Seizing future business opportunities, the Center researches and develops technologies that will serve as the core of a business. At the same time, our internal companies and subsidiaries engage in development, including the development of products whose commercialization is still years away, based on customer needs.

Development Committee

The Development Committee is an organizational body chaired by the Chief Engineering Officer. Its members include the Chief of the Research & Development Center and engineering managers from various internal companies. The Development Committee determines a variety of matters concerning the drafting and execution of our Group’s technology strategies, with the committee chair making proposals and reports to the Management Conference as necessary.

Open innovation

The TOKYO KEIKI Group actively participates in joint research with industry, government, and academia, as well as open innovation that promotes collaboration among businesses. The following are recent examples.


• Aiming for wide-scale commercialization of fully autonomous ship technology by 2025




TOKYO KEIKI is a member of the Designing the Future of Fully Autonomous Ships Plus Consortium (DFFAS+), which consists of 51 companies in Japan. We are participating in the “Joint Technological Development Program for the Demonstration of Fully Autonomous Ships”(*1) under the Nippon Foundation’s MEGURI2040 Fully Autonomous Ship Program (MEGURI2040).
  The program is considered the second stage of MEGURI2040, which launched in 2020. Through it, TOKYO KEIKI and the Nippon Foundation aim for full-fledged practical application of autonomous ship technology cultivated in the first stage, known as “Joint Technological Development Program for the Demonstration Experiments of Fully Autonomous Ships,” by 2025. This program has four objectives: demonstration experiments, standardization of developed technology, strengthening the development process infrastructure, and real-world implementation.
  TOKYO KEIKI participated in the first stage of MEGURI2040 as the DFFAS Consortium, the predecessor of DFFAS+. We continue our participation in the second stage of MEGURI2040, in which we are serving as the leader of a working group tasked with standardizing the technology.
  For the demonstration experiments, next-generation ships are being designed to support the domestic coastal shipping industry of the future. Demonstrations of ship and land operations that envision a future domestic coastal shipping industry supported by autonomous vessels are also being conducted. These demonstrations use four different ships(*2) and two fleet operation centers. In addition to autopilot, gyrocompass, and other products, TOKYO KEIKI is providing steering control technology cultivated during the R&D phase of these products for a newly built full-package container ship equipped with all the autonomous navigation functions. The system will help keep autonomous operation safe by providing appropriate position control on the entire route from detachment to berthing and for evading hazards.
  Working with the Nippon Foundation, the other DFFAS+ participating companies, and cooperating organizations in Japan and abroad, TOKYO KEIKI will continue working on MEGURI2040 as it seeks to achieve commercial autonomous ship operation by 2025. This will help support stable domestic logistics and transportation infrastructure by solving social challenges facing the Japanese coastal shipping industry, reducing labor shortages and workloads, preventing marine accidents, and maintaining shipping routes to remote islands.

Overview of demonstration experiment (all rights reserved)

(*1) Technological Development Program for the Demonstration of Fully Autonomous Ships: A financial support program for the development of technologies to promote practical use of autonomous ships and thereby create opportunities for further technological development in the field, thus promoting the transformation of Japan’s logistics, economy, and social infrastructure.
(*2) Four different ships: A newly built full-package container ship equipped with all the autonomous navigation functions, an existing container ship with some autonomous navigation functions, an existing RORO cargo ship, and an existing remote island route ship.

• Miniaturization of high-pressure hydrogen production system using formic acid.


TOKYO KEIKI and its subsidiary TOKYO KEIKI POWER SYSTEMS INC. (TPS), together with the National Institute of Advanced Industrial Science and Technology (AIST), have begun “Joint Research and Development on a Compact and Practical Model for a System for Producing High-Pressure Hydrogen using Formic Acid.”*
  TPS, a developer and producer of hydraulic systems, applies hydraulic control technology to offer hydrogen compressors for hydrogen filling stations, especially in urban areas. At the same time, we have been studying compact, low-cost hydrogen supply systems that can be used on-site. These are intended for rural areas with inadequate hydrogen filling stations and other hydrogen supply infrastructure, or for relatively small-scale hydrogen use.
  In this area, we are researching and developing a compact and practical model for a system that produces high-pressure hydrogen using formic acid. AIST has been researching technology for producing high-pressure hydrogen from formic acid and implementing it in the real world. To store and transport hydrogen in large quantities, it must be compressed. Most hydrogen generation systems start with hydrogen at a pressure equivalent to the atmosphere and use a compression device to bring it to high pressure. A hydrogen production system using formic acid, however, can omit the compression process because it can obtain high-pressure hydrogen directly. This could allow for the use of smaller, less expensive equipment in the high-pressure hydrogen production process.
  The Group is promoting the hydrogen and energy business as one growth driver in TOKYO KEIKI Vision 2030. We will work to further advance hydrogen energy through our R&D.


System for producing high-pressure hydrogen from formic acid, used by AIST to demonstrate the technology (Photo courtesy of AIST)

(*) Formic acid: A chemical widely used in industrial applications, including as a preservative in livestock feed, a tanning agent for hides, and anti-freeze. Storing and transporting hydrogen consumes a great amount of energy. This has prompted R&D on hydrogen carriers that can efficiently store and transport hydrogen by converting it to another substance. AIST has long focused on formic acid as a new hydrogen energy carrier.

Aiming for Track Diagnosis Support System

TOKYO KEIKI RAIL TECHNO INC. takes on new technological domain

Track inspection today

Japan prides itself on the unrivaled safety and accuracy of its railroads. Even today, many inspectors work to protect the tracks. It takes many materials (components) to build tracks, and these materials must be kept in sound condition for trains to operate safely. Inspection and repair work is performed late at night, after train service ends for the day until the first trains start running early in the morning. However, “foot patrols” (visual inspections) require monitoring track conditions on foot during the day. Workers risk being hit by a train while doing this very dangerous job. It’s critical to secure highly skilled individuals, as they need to inspect the condition of track materials while walking along the line. Moreover, the work is a heavy responsibility and psychological burden for workers. The rigorous work conditions are one reason why the number of workers has fallen in recent years, making it acutely challenging for railroad operators to maintain safe and sustainable railroads. The need to solve this social issue has led to a great demand in recent years for measurement work to be done with rolling stock that carries inspection equipment.
  The “track diagnosis support system” from TOKYO KEIKI RAIL TECHNO (TRT) could help to free workers from dangerous foot patrols and improve track maintenance productivity by enabling more frequent inspections and examinations and using data gathered at high frequency to predict the deterioration of facilities.

Merits of the track diagnosis support system

More than 70% of the ultrasonic rail inspection cars*1 used by railway companies in Japan today are TRT products. Based on this success, TRT developed the track diagnosis support system, which inspects various track materials. Mounted on passenger trains as well as exclusive maintenance vehicles, the system can automatically determine the condition of track materials. The result is greater efficiency, safety, and accuracy in the monitoring of track materials compared to foot patrols.
  The system uses multiple image sensors that are located under the cabin and continuously photograph the track from different angles. It identifies individual track materials from the images taken. AI is implemented to support determination on whether anything has fallen off or is missing and whether there are any defects or other abnormalities from the track images.
  The system can even be mounted on passenger rolling stock for high-frequency measurement. Operators can therefore switch from the conventional repair planning method of TBM*2 to CBM*3 and accurately calculate when repair work is required. This reduces both human and financial costs.
  Through R&D conducted at TRT and TOKYO KEIKI’s Fluid Power & Control Systems Company, we developed proprietary imaging equipment that mounts under the cabin. TOKYO KEIKI also made the image processor used by the system. In addition, the TOKYO KEIKI Group manages all processes, from the development of image processing algorithms to software production. This enables us to offer prompt and detailed support.

*1 Ultrasonic rail inspection car: A non-destructive inspection car, it has equipment that uses ultrasonic waves to detect flaws inside rails that are concealed from visual inspection.
*2 TBM: Time-Based Maintenance. A maintenance method based on periodic maintenance. Maintenance is performed at predetermined times and cycles, regardless of the condition of equipment and machinery.
*3 CBM: Condition-Based Maintenance. A maintenance method that utilizes IoT, AI, or other technologies to monitor and predict equipment deterioration and breakdowns. This enables appropriate repairs and parts replacement before breakdowns or malfunctions occur.


A multifunction inspection car of Kyushu Railway Company (JR Kyushu)
equipped with the track diagnosis support system

               Track diagnosis support system



Overview of analysis



Example of materials detection

Automatic determination of railroad sleepers

Perpendicular determination of railroad sleepers

Determination of fishplate bolt  
                  Base corrosion
   Measurement of joint gaps