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Forward Citations = 125

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12 inventors (with patents filed for the assignee):

Tohei Yokoyama (5 out of 7 patents)

Kiyoshi Urayama (5 out of 7 patents)

Masuo Hosokawa (2 out of 6 patents)

4. Kenji Fujii (1 out of 158 patents)

5. Noriyoshi Kaya (1 out of 1 patent)

6. Kunio Okubo (1 out of 1 patent)

7. Shintaro Asakura (1 out of 1 patent)

8. Haruhisa Yamashita (1 out of 1 patent)

9. Katsuya Mizui (1 out of 1 patent)

10. Kouichi Doi (1 out of 1 patent)

11. Akio Tanaka (1 out of 2 patents)

12. Yasuo Kamo (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 4550879 - Vertical type pulverizing and classifying apparatus (1985-11-05),

2. 4529135 - Grinding crusher (1985-07-16),

3. 4490601 - Apparatus for manufacturing metallic fine particles using an electric arc (1984-12-25),

4. 4292172 - Apparatus for classifying particles (1981-09-29),

5. 4290790 - Filter apparatus and filter support frames (1981-09-22),

6. 4279165 - Apparatus for measuring cohesion force of particulate materials (1981-07-21),

7. 4260478 - Apparatus for classifying particles (1981-04-07),

8. 4122715 - Apparatus for measuring flow rate of powdery and/or granular material (1978-10-31),

9. 3934762 - Apparatus having vibrating plates for feeding powdered material (1976-01-27),

10. 3933648 - Screening apparatus (1976-01-20),

Kabushiki Kaisha Hosokawa Funtai Kogaku Kenkyusho is a Japanese company specializing in research and development of optical coatings. With a strong focus on innovation and technology, the company provides cutting-edge solutions for various industries including electronics, automotive, and healthcare. Their expertise in optical engineering has made them a trusted partner for clients seeking high-quality coatings for their products.

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Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

10 Patents

#409 in Osaka

#4,284 in Japan

#54,303 in the World

Osaka, Japan

Kabushiki Kaisha Hosokawa Funtai Kogaku Kenkyusho