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Gamagorishi, Japan

Itoh Optical Industrial Co., Ltd.

USPTO Granted Patents = 11

EPO Patents = 4

Forward Citations = 22

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25 inventors (with patents filed for the assignee):

Yasushi Miyajima (4 out of 4 patents)

Yasuhiro Takaki (3 out of 4 patents)

Naoki Uchida (2 out of 2 patents)

4. Hirohisa Kato (2 out of 5 patents)

5. Takehiro Shimizu (2 out of 2 patents)

6. Hirofumi Oda (2 out of 2 patents)

7. Sachio Murai (2 out of 2 patents)

8. Kouji Suesugi (1 out of 14 patents)

9. Mamoru Kosuge (1 out of 6 patents)

10. Noriko Fukawa (1 out of 1 patent)

11. Masashi Omote (1 out of 1 patent)

12. Yuji Saito (1 out of 1 patent)

13. Norihito Soma (1 out of 1 patent)

14. Shigeki Nakauchi (1 out of 5 patents)

15. Tatsuya Onouchi (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 12461371 - Head-mounted display and virtual image forming lens to be used for the head-mounted display (2025-11-04),

2. 12135472 - Optical material, polymerizable composition for optical material, cured product, optical material, plastic lens, method of producing optical material, and method of using optical material (2024-11-05),

3. 11740459 - Head-mounted display and method for designing wide-focus lens to be used for the head-mounted display (2023-08-29),

4. 11300805 - Stereoscopic eyeglasses, method for designing eyeglass lens to be used for the stereoscopic eyeglasses, and method for observing stereoscopic image (2022-04-12),

5. 11131868 - Method for corrective lens and corrective lens (2021-09-28),

6. 10723915 - Hard coating composition (2020-07-28),

7. 9482402 - Automotive lamp (2016-11-01),

8. 8131518 - Method for forming functional spectral filter (2012-03-06),

9. 6773465 - Optical element (2004-08-10),

10. 5322888 - Coating composition for optical plastic moldings (1994-06-21),

11. 5278268 - Organic glass for optical parts (1994-01-11),

Itoh Optical Industrial Co., Ltd. is a leading manufacturer of optical components and systems with a focus on precision engineering. Established in 1946, the company has a long history of providing high-quality products for various industries including medical, aerospace, and research. With a strong emphasis on innovation and customer satisfaction, Itoh Optical continues to push the boundaries of optical technology.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

11 Patents

#1 in Gamagorishi

#4,042 in Japan

#50,255 in the World

Gamagorishi, Japan

Itoh Optical Industrial Co., Ltd.

Forward Citations = 22

25 inventors:

Yasushi Miyajima (4 out of 4 patents)

Yasuhiro Takaki (3 out of 4 patents)

Naoki Uchida (2 out of 2 patents)

4. Hirohisa Kato (2 out of 5 patents)

5. Takehiro Shimizu (2 out of 2 patents)

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