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For the Inventor, By the Inventor

Tachikawa, Japan

Metrol Co., Ltd.


USPTO Granted Patents = 16

% Expired Patents = 12.5


Trademarks = 1

Forward Citations = 42

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4 inventors (with patents filed for the assignee):

goldMedal Akira Matsuhashi (16 out of 16 patents)

silverMedal Yasushi Takagi (1 out of 1 patent)

bronzeMedal Teruo Yajima (1 out of 1 patent)

4.  Masaaki Sato (1 out of 60 patents)

5.  Takamoto Yoshioka (3 patents)

6.  Yusuke Wasa (0 patent)

7.  Takayuki Kanno (0 patent)

8.  Kanno Takayuki (0 patent)

9.  Yoshioka Takamoto (0 patent)


16 patents:

1. 7322120 - Tool damage detection device (2008-01-29),
2. 6547045 - Shock absorber (2003-04-15),
3. D449031 - Shock absorber (2001-10-10),
4. 6267360 - Shock absorber (2001-07-31),
5. 6177642 - Adjusting mechanism for touch sensor (2001-01-23),
6. 6060855 - Moving apparatus for arm of tool edge sensor (2000-05-09),
7. D418116 - Push-switch with cords (1999-12-28),
8. D417199 - Push-switch with a cord (1999-11-30),
9. 5959271 - Stopping device with a switch (1999-09-28),
10. 5939685 - Stopping device with a switch (1999-08-17),
11. D402634 - Push-switch with a cord (1998-12-15),
12. 5819429 - Touch sensor (1998-10-13),
13. 5594995 - Touch sensor (1997-01-21),
14. 5541588 - Control signal transfer device for a position detecting sensor (1996-07-30),
15. 5475932 - Shaft position sensor (1995-12-19),
Company Overview
Metrol Co., Ltd. is a Japanese company headquartered in Tachikawa, specializing in precision measurement and testing equipment. The organization focuses on developing advanced solutions for various industries, including manufacturing and quality control, ensuring high standards in measurement accuracy and reliability. Metrol is committed to innovation in metrology, providing tools and technologies that enhance operational efficiency and product quality across diverse applications, particularly in the Asian market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

16 Patents

#1 in Tachikawa

#3,343 in Japan

#37,868 in the World

Tachikawa, JP
Tachikawa, Japan

Metrol Co., Ltd.

Forward Citations = 42

4 inventors:

goldMedal Akira Matsuhashi (16 out of 16 patents)

silverMedal Yasushi Takagi (1 out of 1 patent)

bronzeMedal Teruo Yajima (1 out of 1 patent)

4.  Masaaki Sato (1 out of 60 patents)

5.  Takamoto Yoshioka (3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Metrol Co., Ltd.. Retrieved from https://idiyas.com/company/metrol-company

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

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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