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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 leading manufacturer and supplier of electrical measurement equipment such as multimeters, clamp meters, insulation testers, and more. With a history dating back to 1940, the company has established a strong reputation for producing high-quality, reliable instruments for professionals in the electrical industry. Kyoritsu is committed to innovation and meeting the evolving needs of customers worldwide.

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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