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EPO Patents = 1

Forward Citations = 21

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11 inventors (with patents filed for the assignee):

Seichin Kinuta (8 out of 9 patents)

Yoshiyuki Ichinosawa (3 out of 3 patents)

Seiji Ito (2 out of 3 patents)

4. Hayao Nakanishi (2 out of 3 patents)

5. Atsushi Nishino (2 out of 67 patents)

6. Akiko Yusa (1 out of 1 patent)

7. Hiroyuki Honda (1 out of 2 patents)

8. Mina Okochi (1 out of 1 patent)

9. Masashi Kobayashi (1 out of 1 patent)

10. Seitin Kinuta (1 out of 1 patent)

11. Hiroyuki Honda (8 patents)

9 patents: Sort by Forward Citations

1. 10814353 - Sieve (2020-10-27),

2. 10641689 - Method of preparing glass slide specimen of cells (2020-05-05),

3. 10022659 - Device for isolating periphery circulating tumor cells or rare cells, and method of isolating periphery circulating tumor cells or rare cells (2018-07-17),

4. 9526882 - Percutaneous administration device and method for producing the same (2016-12-27),

5. 9397325 - Safety vent and electrochemical device (2016-07-19),

6. 9176168 - Probe card (2015-11-03),

7. 8267255 - Sieve, sifting device, solder balls, and method of sifting spherical particles (2012-09-18),

8. 7771788 - Spherical ultrafine particles and process for producing the same (2010-08-10),

9. 6180279 - Method of manufacturing battery explosion prevention safety device (2001-01-30),

Optnics Precision Co., Ltd. is a leading manufacturer of high-precision optical components and assemblies. With over 20 years of experience in the industry, we specialize in the design and production of custom optical solutions for a wide range of applications, including medical devices, defense systems, and scientific instruments. Our state-of-the-art facility is equipped with advanced technologies and a team of skilled engineers and technicians dedicated to delivering products of the highest quality and precision.

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USPTO Data Jan 1 1976 - Dec 9 2025

9 Patents

#1 in Ashikaga-shi, Tochigi

#4,573 in Japan

Ashikaga-shi, Tochigi, Japan

Optnics Precision Co., Ltd.