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EPO Patents = 2

Forward Citations = 11

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8 inventors (with patents filed for the assignee):

Nobuyoshi Nambu (3 out of 13 patents)

Osamu Ito (3 out of 32 patents)

Takao Doi (2 out of 3 patents)

4. Atsushi Nakamura (1 out of 11 patents)

5. Shiho Horiuchi (1 out of 1 patent)

6. Hidetoshi Saitoh (1 out of 5 patents)

7. Koujirou Nagatsuka (1 out of 2 patents)

8. Nobuyoshi Nanbu (1 out of 1 patent)

9. Atsushi c/o Yokkaichi Works In Chubu Chelest Co Ltd Nakamura (0 patent)

10. Hiroshi c/o Chelest Corporation Ito (0 patent)

11. Hidetoshi c/o Nagaoka University Of Technology Saitoh (0 patent)

12. Nobuyoshi c/o Yokkaichi Works In Chubu Chelest Co Ltd Nambu (0 patent)

13. Nobuyoshi Yokkaichi Works Nambu (0 patent)

14. Atsushi Yokkaichi Works Nakamura (0 patent)

15. Masanori Yokkaichi Works Furukawa (0 patent)

4 patents: Sort by Forward Citations

1. 6899826 - Process for producing fluorescent metal oxide material (2005-05-31),

2. 6875508 - Fiber capable of forming metal chelate, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber (2005-04-05),

3. 6869537 - Metal chelate-forming fiber, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber (2005-03-22),

4. 6156075 - Metal chelate forming fiber, process for preparing the same, and method (2000-12-05),

Chubu Chelest Co., Ltd. is a leading chemical manufacturer based in Japan. Established in 1990, the company specializes in producing a wide range of high-quality chemicals for various industries including automotive, electronics, and consumer goods. With a strong focus on research and development, Chubu Chelest is committed to providing innovative and sustainable solutions to meet the evolving needs of its customers.

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Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

4 Patents

#709 in Osaka

#7,421 in Japan

Osaka, Japan

Chubu Chelest Co., Ltd.