Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11231524 | Package of heat-bent polarizing sheet and injection-molded polarizing lens | Ryuji Yoshida | 2022-01-25 |
| 10564325 | Protective film-attached functional sheet | Ryuji Yoshida | 2020-02-18 |
| 9897823 | Colored polarizing films, colored polarizing sheets, and colored polarizing lenses, and methods thereof | Hideaki Kimura, Masayuki Akaki, Taisuke Sasagawa, Terutaka Tokumaru | 2018-02-20 |
| 9784895 | Colored low-polarizing films, colored low-polarizing sheets, and colored low-polarizing lenses, and methods thereof | Hideaki Kimura, Taisuke Sasagawa, Masayuki Akaki | 2017-10-10 |
| 9618658 | Functional sheet with protective films | Ryuji Yoshida, Taisuke Sasagawa, Tomomi Nakayama | 2017-04-11 |
| 6636660 | Monochrometer and wavelength division multiplexer comprising said monochrometer | Terutaka Tokumaru | 2003-10-21 |
| 6295150 | Wavelength division multiplexing device | Hisashi Ohwada, Norio Takeda, Kuniaki Jinnai | 2001-09-25 |
| 5923800 | Optical waveguide module having main-line waveguide and branch waveguides, and optical transmission device including such optical waveguide module | Michio Ohba, Hisashi Ohwada, Yasunari Kawabata, Hamaho Hashimoto, Kuniaki Jinnai | 1999-07-13 |
| 5916402 | Method for manufacturing optical element | Michio Ohba, Hisashi Ohwada, Yasunari Kawabata | 1999-06-29 |
| 5345329 | Polarization-independent optical isolator | Kazushi Shirai, Norio Takeda, Mitsuzo Arii | 1994-09-06 |
| 5073725 | Optical harmonic generator | Yoshio Okada, Yoshio Inoue, Kouzaburo Yano, Terutaka Tokumaru | 1991-12-17 |
| 5011250 | Optical harmonic generator | Yoshio Okada | 1991-04-30 |
| 4722510 | Reversible temperature indicating materials | Yukiko Kobayashi, Yoshio Inoue, Shigeo Harada | 1988-02-02 |