Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7469083 | Optical waveguide | Reiko Yoshimura, Tsukasa Tada, Kou Yamada, Miho Maruyama | 2008-12-23 |
| 7372067 | Refractive index changing apparatus and method | Reiko Yoshimura, Fumihiko Aiga, Tsukasa Tada | 2008-05-13 |
| 7245576 | Optical recording medium and optical recording-reproducing method | Katsutaro Ichihara, Sumio Ashida, Keiichiro Yusu, Takayuki Tsukamoto | 2007-07-17 |
| 7081328 | Optical disk having super-resolution film | Toshihiko Nagase, Katsutaro Ichihara, Naoko Kihara | 2006-07-25 |
| 6738335 | Optical recording medium, reproducing method, and reproducing apparatus | Toshihiko Nagase, Katsutaro Ichihara | 2004-05-18 |
| 6002522 | Optical functional element comprising photonic crystal | Toshiro Hiraoka, Shuji Hayase | 1999-12-14 |
| 5971276 | Method of reading pattern and optical signal reader | Kenji Sano, Taeko Urano, Hideyuki Nishizawa, Mitsunaga Saito | 1999-10-26 |
| 5937267 | System, device and method for quantification of polychlorobiphenyls | Shuji Hayase, Katsushi Nishizawa, Nobutada Aoki, Hideki Shimada, Naoki Tajima +1 more | 1999-08-10 |
| 5858541 | Glass composite material, precursor thereof, nitrogen-containing composite material and optical device | Toshiro Hiraoka, Yutaka Majima, Julian R. Koe, Yoshihiko Nakano, Shinji Murai +1 more | 1999-01-12 |
| 5717051 | Glass composite material, precursor thereof, nitrogen-containing composite material and optical device | Toshiro Hiraoka, Yutaka Majima, Julian R. Koe, Yoshihiko Nakano, Shinji Murai +1 more | 1998-02-10 |
| 5694188 | Reflection type liquid crystal display device having comb-shaped wall electrode | Kenji Sano, Yutaka Majima, Masayuki Sekimura, Akinori Hongu, Taeko Urano +2 more | 1997-12-02 |
| 5173440 | Method of fabricating a semiconductor device by reducing the impurities | Yoshitaka Tsunashima, Kikuo Yamabe | 1992-12-22 |