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For the Inventor, By the Inventor

Tokyo, Japan

Right Mfg. Co., Ltd.


USPTO Granted Patents = 10

% Expired Patents = 70.0


Trademarks = 3

Forward Citations = 79

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15 inventors (with patents filed for the assignee):

goldMedal Tatsuhiko Nagata (6 out of 6 patents)

silverMedal Kenichi Takahashi (3 out of 55 patents)

bronzeMedal Norikazu Hamanaka (2 out of 2 patents)

4.  Nobuo Saito (2 out of 8 patents)

5.  Yasuhide Takahashi (2 out of 2 patents)

6.  Yuuichi Kimura (2 out of 2 patents)

7.  Eishi Aizawa (2 out of 2 patents)

8.  Tetsurou Nishida (2 out of 3 patents)

9.  Keisuke Suzuki (1 out of 79 patents)

10.  Hajime Hakamada (1 out of 1 patent)

11.  Kotaro Kawanishi (1 out of 1 patent)

12.  Takehiko Yoshimura (1 out of 1 patent)

13.  Masaru Seki (1 out of 1 patent)

14.  Yoshinori Cho (1 out of 1 patent)

15.  Yasunori Ueno (1 out of 30 patents)


10 patents:

1. 11234593 - Slit lamp microscope (2022-02-01),
2. 9010384 - Load port (2015-04-21),
3. 8262225 - Eye examination apparatus, method for manufacturing spectacle lens, spectacle lens, method for manufacturing multifocal eyeglasses, and multifocal eyeglasses (2012-09-11),
4. 7965819 - Device for limiting field on which radiation is irradiated (2011-06-21),
5. 7775664 - Instrument for measuring a refractive power (2010-08-17),
6. 7604352 - Instrument for measuring a refractive power (2009-10-20),
7. 7360898 - Eye accommodation function state measurement device and eye accommodation function state measurement method (2008-04-22),
8. 7344349 - Pod cover removing-installing apparatus (2008-03-18),
9. 7290879 - Eye refractive power measurement device (2007-11-06),
10. 7112027 - Pod cover removing-installing apparatus (2006-09-26),
Company Overview
Right Mfg. Co., Ltd. is a Tokyo-based company specializing in the development and manufacturing of precision machinery and components. With a focus on innovation, the company serves various sectors, including automotive, electronics, and industrial equipment. Right Mfg. is dedicated to advancing technology through research and development, ensuring high-quality products that meet the evolving needs of its clients. The organization emphasizes efficiency and precision in its manufacturing processes, contributing to advancements in engineering and technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

10 Patents

#1,915 in Tokyo

#4,404 in Japan

#56,092 in the World

Tokyo, JP
Tokyo, Japan

Right Mfg. Co., Ltd.

Forward Citations = 79

15 inventors:

goldMedal Tatsuhiko Nagata (6 out of 6 patents)

silverMedal Kenichi Takahashi (3 out of 55 patents)

bronzeMedal Norikazu Hamanaka (2 out of 2 patents)

4.  Nobuo Saito (2 out of 8 patents)

5.  Yasuhide Takahashi (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Right Mfg. Co., Ltd.. Retrieved from https://idiyas.com/company/right-mfg-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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