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:

System Instruments Co., Ltd. is a renowned company specializing in the manufacturing and distribution of high-quality electronic instruments and devices. With a strong focus on innovation and customer satisfaction, we strive to provide cutting-edge measurement and control solutions to various industries. Our extensive range of products includes power analyzers, data loggers, signal generators, and oscilloscopes. Throughout our years of operation, we have gained a reputation for delivering reliable and efficient instruments that meet international standards. Visit our website to explore our comprehensive product catalog and learn more about our commitment to excellence.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

13 Patents

#1,658 in Tokyo

#3,742 in Japan

#44,950 in the World

Tokyo, JP
Tokyo, Japan
Forward Citations = 47

20 inventors:

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