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For the Inventor, By the Inventor

Tokyo, Japan

Yamamoto-Ms Co., Ltd.

Calculating rank
USPTO Granted Patents = 15

% Expired Patents = 33.3


Trademarks = 7

Forward Citations = 19

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10 inventors (with patents filed for the assignee):

goldMedal Wataru Yamamoto (14 out of 20 patents)

silverMedal Katsunori Akiyama (6 out of 10 patents)

bronzeMedal Kimiko Koiwa (2 out of 2 patents)

4.  Masazumi Ishiguro (2 out of 2 patents)

5.  Yoshiaki Hoshino (2 out of 2 patents)

6.  Fumio Harada (2 out of 2 patents)

7.  Chikako Suzuki (1 out of 3 patents)

8.  Hajime Kiyokawa (1 out of 8 patents)

9.  Yutaka Tsuru (1 out of 1 patent)

10.  Tatsuo Yamamoto (1 out of 3 patents)

11.  Takayuki Homma (14 patents)

12.  Mikiko Saito (19 patents)

13.  Masahiro Yanagisawa (67 patents)

14.  Tomoyuki Yamamoto (6 patents)

15.  Kiyokawa Hajime (0 patent)


15 patents:

1. 11674236 - Plating apparatus and plating system (2023-06-13),
2. 10988855 - Plating device (2021-04-27),
3. 10697079 - Plating device (2020-06-30),
4. 10030313 - Plating apparatus and container bath (2018-07-24),
5. 8720368 - Plating jig (2014-05-13),
6. 7828945 - Plating barrel, barrel plating apparatus and drain equipment (2010-11-09),
7. 7780824 - Electroplating jig (2010-08-24),
8. 7682493 - Electrode cartridge and a system for measuring an internal stress for a film of plating (2010-03-23),
9. 7361225 - Liquid tank (2008-04-22),
10. 6830667 - Cathode cartridge and anode cartridge of testing device for electroplating (2004-12-14),
11. 6826440 - Experimental management apparatus and experimental management program for electroplating (2004-11-30),
12. 6811661 - Cathode cartridge of testing device for electroplating and testing device for electroplating (2004-11-02),
13. 6673218 - Cathode cartridge for electropating tester (2004-01-06),
14. 6153065 - Internal stress testing device for high speed electroplating (2000-11-28),
15. 6017427 - Apparatus for testing high speed electroplating (2000-01-25),
Company Overview
Yamamoto-Ms Co., Ltd. is a Tokyo-based company specializing in the development and manufacturing of advanced materials and components for various industries. The organization focuses on innovative solutions in fields such as electronics, automotive, and medical devices, leveraging cutting-edge technology to enhance product performance and reliability. With a commitment to research and development, Yamamoto-Ms aims to address the evolving needs of its clients while contributing to advancements in material science and engineering.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

15 Patents

#1,544 in Tokyo

#3,449 in Japan

#40,018 in the World

Tokyo, JP
Tokyo, Japan

Yamamoto-Ms Co., Ltd.

Forward Citations = 19

10 inventors:

goldMedal Wataru Yamamoto (14 out of 20 patents)

silverMedal Katsunori Akiyama (6 out of 10 patents)

bronzeMedal Kimiko Koiwa (2 out of 2 patents)

4.  Masazumi Ishiguro (2 out of 2 patents)

5.  Yoshiaki Hoshino (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yamamoto-Ms Co., Ltd.. Retrieved from https://idiyas.com/company/yamamoto-ms-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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