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For the Inventor, By the Inventor

Tokyo, Japan

System Instruments Co., Ltd.

USPTO Granted Patents = 13

% Expired Patents = 7.7


Forward Citations = 47

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20 inventors (with patents filed for the assignee):

goldMedal Takeshi Akiba (6 out of 6 patents)

silverMedal Kazuyuki Hamada (5 out of 18 patents)

bronzeMedal Yoshihisa Ujima (3 out of 3 patents)

4.  Chikara Ohyama (2 out of 4 patents)

5.  Tohru Yoneyama (2 out of 4 patents)

6.  Toshifumi Takeuchi (2 out of 5 patents)

7.  Hiroshi Yokoi (2 out of 6 patents)

8.  Yuki Tobisawa (1 out of 3 patents)

9.  Kiyoshi Yamamoto (1 out of 22 patents)

10.  Yukiya Kitayama (1 out of 2 patents)

11.  Toshiharu Kuroda (1 out of 2 patents)

12.  Michio Horiuchi (1 out of 2 patents)

13.  Yanbei Zhu (1 out of 1 patent)

14.  Koichi Chiba (1 out of 3 patents)

15.  Junichi Hoshino (1 out of 1 patent)


13 patents:

1. 11987643 - Monoclonal antibody that specifically binds to sugar chain in which terminal sialic acid residue is bonded to galactose by alpha 2,3 bond, and measurement method for sugar chain in which terminal sialic acid residue is bonded to galactose by alpha 2,3 bond (2024-05-21),
2. 10786778 - Power supply control device of nitrogen gas generator (2020-09-29),
3. 10471011 - In vivo stealth nanoparticle (2019-11-12),
4. 10302638 - Analyzing apparatus (2019-05-28),
5. 10258794 - Electrical stimulation device, training apparatus, and electrical stimulation method (2019-04-16),
6. 9952606 - Automatic pH adjustment device (2018-04-24),
7. 9754158 - Training device (2017-09-05),
8. 9702850 - Electrophoresis method and electrophoresis device (2017-07-11),
9. 9251718 - Training apparatus (2016-02-02),
10. 8992384 - Training apparatus (2015-03-31),
11. 7922621 - Physical exercise condition detecting apparatus of muscle force training machine (2011-04-12),
12. 7298485 - Method of and a device for measuring optical absorption characteristics of a sample (2007-11-20),
13. 4852034 - Digital filter (1989-07-25),
Company Overview
System Instruments Co., Ltd. is a Tokyo-based company specializing in advanced measurement and control systems. The organization focuses on developing innovative solutions for various industries, including electronics, automotive, and manufacturing. With a strong emphasis on research and technology, System Instruments aims to enhance productivity and efficiency through its cutting-edge products. The company is recognized for its commitment to quality and precision in the design and implementation of its systems, catering to both domestic and international markets.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

13 Patents

#1,663 in Tokyo

#3,752 in Japan

#45,081 in the World

Tokyo, JP
Tokyo, Japan

System Instruments Co., Ltd.

Forward Citations = 47

20 inventors:

goldMedal Takeshi Akiba (6 out of 6 patents)

silverMedal Kazuyuki Hamada (5 out of 18 patents)

bronzeMedal Yoshihisa Ujima (3 out of 3 patents)

4.  Chikara Ohyama (2 out of 4 patents)

5.  Tohru Yoneyama (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: System Instruments Co., Ltd.. Retrieved from https://idiyas.com/company/system-instruments-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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