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For the Inventor, By the Inventor

Urawa, Japan

Koichi Futsuhara

This inventor holds 51 USPTO granted patents, primarily in Safety Systems (CPC class 3406). Top assignees: The Nippon Signal Co., Ltd., Kao Corporation, L. Engineering Co. Ltd.. Active years: 1987-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Futsuhara. Retrieved from https://idiyas.com/inventor/koichi-futsuhara

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 51

% Patents Active = 94.1

Average Co-Inventor Count = 2.2

ph-index = 10

Forward Citations = 417(Granted Patents)

Forward Citations (Not Self Cited) = 337(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Omiya, JP (1987 - 1989)
  • Omiya-shi, Saitama JP (1991)
  • Saitama-ken, JP (1996 - 1998)
  • Urawa, JP (1992 - 2003)
  • Kuki, JP (2003)

Company Filing History:

goldMedal50 out of 89 
 
The Nippon Signal Co., Ltd.
 patents
silverMedal2 out of 3,680 
 
Kao Corporation
 patents
bronzeMedal1 out of 1 
 
L. Engineering Co. Ltd.
 patent
4. 1 out of 8 
 
Nagano Keiki Seisakusho, Ltd.
 patents
5. 1 out of 1 
 
Yamatake & Co., Ltd.
 patent
6. 2 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1987-2003

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Areas of Expertise:
Traffic Signal Monitoring
Emergency Stop Switch
Load Driving Circuit
Fail-Safe Systems
Information Generating Apparatus
Rotating Machine Control
Elastic Waves
Safety Ensuring Devices
Current Sensors
Motor Verification
Transition Detection
Mat Sensors
51 patents (USPTO):Explore Patents
1. 6657762 - Optical barrier device (2003-12-02),
2. 6504485 - Monitoring apparatus and control apparatus for traffic signal lights (2003-01-07),
3. 6459656 - Information generating apparatus using elastic waves (2002-10-01),
4. 6434025 - Power supply unit (2002-08-13),
5. 6334077 - Operation apparatus for press (2001-12-25),
6. 6292524 - Counting apparatus and rotation stopped detection apparatus which uses a counting apparatus (2001-09-18),
7. 6292432 - Information generating apparatus using elastic waves (2001-09-18),
8. 6272001 - Emergency stop switch and emergency stop switch circuit (2001-08-07),
9. 6239956 - Fail-safe timing circuit and on-delay circuit using the same (2001-05-29),
10. 6184799 - Monitoring apparatus and control apparatus for traffic signal lights (2001-02-06),
11. 6148055 - Counter and a revolution stop detection apparatus using the counter (2000-11-14),
12. 6047634 - Fail-safe automatic sliding operation control apparatus for press (2000-04-11),
13. 6034449 - Load drive circuit (2000-03-07),
14. 6031790 - Information generator using elastic wave (2000-02-29),
15. 6002249 - Rotation detection sensor (1999-12-14),

Title: The Innovative Contributions of Koichi Futsuhara

Introduction

Koichi Futsuhara, an accomplished inventor based in Urawa, Japan, holds an impressive portfolio of 51 patents. His groundbreaking work primarily focuses on optical devices and traffic management systems, contributing significantly to advancements in safety and efficiency.

Latest Patents

Futsuhara's most recent inventions include an optical barrier device and a monitoring apparatus for traffic signal lights. The optical barrier device features a unique scanning mechanism that detects objects by monitoring reflected optical beams. When the scanning beam is obstructed, it alerts users to the presence of an object, enhancing safety in various applications.

Additionally, his monitoring apparatus for traffic signal lights employs sensors to ensure the reliable operation of traffic signals at intersections. By detecting the illumination conditions of signal lights, the system can emit a normal judgment output when conditions are ideal. Conversely, it generates an abnormal judgment output when signal lights malfunction, providing a fail-safe mechanism that ensures traffic safety.

Career Highlights

Throughout his career, Koichi Futsuhara has made significant strides in the field of optical and signal management technologies. His work at companies such as Nippon Signal Co., Ltd. has solidified his reputation as an innovative force in the industry.

Collaborations

Futsuhara has collaborated with renowned professionals like Masayoshi Sakai and Toshihito Shirai. These partnerships have fostered the development of advanced technologies and have enriched his work in the realm of optical devices and traffic safety systems.

Conclusion

Koichi Futsuhara's inventive spirit and dedication to enhancing safety through technology are reflected in his extensive patent portfolio. His latest innovations not only illustrate his technical prowess but also contribute to a safer environment for all. As he continues to develop new solutions, his impact on the industry remains significant and promising.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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