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Trademarks = 2

Forward Citations = 170

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4 inventors (with patents filed for the assignee):

Masamichi Kuramoto (11 out of 15 patents)

Takeo Kuramoto (7 out of 13 patents)

Takashi Seike (1 out of 1 patent)

4. Tomosuke Itoh (1 out of 1 patent)

19 patents: Sort by Forward Citations

1. D545704 - Volt-ohm-ammeter (2007-07-03),

2. D490331 - Volt-ammeter (2004-05-26),

3. 6586923 - Non-contact type current measuring instrument (2003-07-01),

4. D476246 - Volt-ohm-ammeter (2003-06-25),

5. D462021 - Electricity measuring instrument (2002-08-28),

6. D446734 - Volt-ohm-ammeter (2001-08-22),

7. D440892 - Volt-ohm-ammeter (2001-04-25),

8. D422229 - Volt-ohm-ammeter (2000-04-04),

9. D401172 - Ammeter (1998-11-17),

10. D358349 - Volt-ohm-ammeter (1995-05-16),

11. D335095 - Voltammeter (1993-04-27),

12. D312420 - Volt-ohm-ammeter or the like (1990-11-27),

13. D271948 - Ampere-volt-wattmeter or the like (1983-12-27),

14. D264448 - Portable volt-ohm-ammeter or the like (1982-05-18),

15. D264057 - Volt-ohm-ammeter or the like (1982-04-27),

Kyoritsu Electrical Instruments Works, Ltd. is a prominent Japanese company specializing in the development and manufacturing of electrical measuring instruments. The organization focuses on a diverse range of products, including multimeters, insulation testers, and earth resistance testers, catering to various industries such as construction, electrical engineering, and telecommunications. With a commitment to innovation, Kyoritsu plays a significant role in advancing measurement technology, ensuring safety and accuracy in electrical applications across Japan and beyond.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

19 Patents

#1,379 in Tokyo

#3,033 in Japan

#32,592 in the World

Tokyo, Japan

Kyoritsu Electrical Instruments Works, Ltd.

Forward Citations = 170

4 inventors:

Masamichi Kuramoto (11 out of 15 patents)

Takeo Kuramoto (7 out of 13 patents)

Takashi Seike (1 out of 1 patent)

4. Tomosuke Itoh (1 out of 1 patent)

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