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Forward Citations = 58

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5 inventors (with patents filed for the assignee):

Akira Shibata (13 out of 31 patents)

Seiichi Tanaka (3 out of 27 patents)

Masaharu Yida (2 out of 2 patents)

4. Shigeru Tabei (2 out of 5 patents)

5. Teruo Hirata (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 5366135 - Method of making composite electrical contact (1994-11-22),

2. 5268237 - Composite electrical contact (1993-12-07),

3. 5102480 - Ag-SnO-CdO electrical contact materials and manufacturing method thereof (1992-04-07),

4. 4981533 - Internal-oxidation method of electrical contact materials and the (1991-01-01),

5. 4803322 - Electrical contacts for electric breakers (1989-02-07),

6. 4695330 - Method of manufacturing internal oxidized Ag-SnO system alloy contact (1987-09-22),

7. 4680162 - Method for preparing Ag-SnO system alloy electrical contact material (1987-07-14),

8. 4647322 - Internal oxidized Ag-SnO system alloy electrical contact materials (1987-03-03),

9. 4636270 - Internal oxidized Ag-Sn system alloy contact materials (1987-01-13),

10. 4556435 - Method for preparing cores and the like made from metallic oxides (1985-12-03),

11. 4514238 - Internally oxidized Ag-Sn-Bi alloy electrical contact materials (1985-04-30),

12. 4479892 - Ag-Metal oxides electrical contact materials (1984-10-30),

13. 4475991 - Method of diffusion cladding a Fe-containing base material for (1984-10-09),

14. 4452651 - Electrical contact materials and their production method (1984-06-05),

15. 4429458 - Method for making composite electrical contact welded in situ to (1984-02-07),

Chugai Denki Kogyo K.K. is a leading manufacturer and distributor of electrical equipment and components. With a strong focus on innovation and quality, the company provides a wide range of products including power distribution systems, control panels, and wiring devices. Chugai Denki Kogyo K.K. has been serving customers in various industries for over 50 years, with a reputation for reliability and customer satisfaction.

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USPTO Data Jan 1 1976 - Dec 16 2025

17 Patents

#1,264 in Tokyo

#3,160 in Japan

#34,838 in the World

Tokyo, Japan

Chugai Denki Kogyo K.k.