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Forward Citations = 38

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22 inventors (with patents filed for the assignee):

Yoshitaka Yamashita (3 out of 3 patents)

Joji Takahashi (3 out of 3 patents)

Hideo Takenaka (3 out of 3 patents)

4. Tomio Kashiwai (2 out of 2 patents)

5. Eiji Kanazawa (2 out of 2 patents)

6. Satoshi Matsumoto (1 out of 52 patents)

7. Kazumichi Yanagisawa (1 out of 13 patents)

8. Isao Matsushita (1 out of 1 patent)

9. Hiroaki Sano (1 out of 2 patents)

10. Takashi Yasukuni (1 out of 4 patents)

11. Hiroo Sato, Deceased (1 out of 1 patent)

12. Kiyotaka Nagai (1 out of 3 patents)

13. Kazuhiro Takagi (1 out of 1 patent)

14. Iwane Kagimoto (1 out of 1 patent)

15. Shinpei Yamamoto (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 6048396 - Method for producing calcite-type calcium carbonate single crystal (2000-04-11),

2. 6004786 - Inorganic carrier containing bound silane coupling agent having (1999-12-21),

3. 5766465 - Water treatment apparatus (1998-06-16),

4. 5756415 - Method of making a enzyme immobilizing carrier (1998-05-26),

5. 5614401 - Enzyme immobilizing carrier containing kaolin (1997-03-25),

6. 5167916 - Method for spherodizing molten cast iron and ladle for use in the (1992-12-01),

7. 4611810 - Golf ball (1986-09-16),

Toyo Denka Kogyo Co., Ltd. is a Japanese company specializing in the development and manufacturing of materials for electronic components. Established in 1935, the company has a long history of providing high-quality products for various industries. Their innovative solutions have made them a leading player in the global market.

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Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

7 Patents

#1 in Kochi-ken

#5,301 in Japan

Kochi-ken, Japan

Toyo Denka Kogyo Co., Ltd.