Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10186838 | Semiconductor light-emitting element | Hirotaka Uemura, Haruhiko Yoshida, Kazuya Ohira, Norio Iizuka | 2019-01-22 |
| 10103514 | Optical semiconductor device and method for manufacturing the same | Kazuya Ohira, Hirotaka Uemura, Haruhiko Yoshida, Norio Ilzuka, Hideto Furuyama | 2018-10-16 |
| 9755097 | Semiconductor photoreceiving device | Haruhiko Yoshida, Kazuya Ohira | 2017-09-05 |
| 9594215 | Semiconductor light-receiving element | Haruhiko Yoshida, Kazuya Ohira | 2017-03-14 |
| 9341776 | Optical interconnection device and method of manufacturing the same | Norio Iizuka, Kazuya Ohira, Haruhiko Yoshida, Hideto Furuyama, Kentaro Kobayashi +1 more | 2016-05-17 |
| 9323003 | Optical device and manufacturing method thereof | Kazuya Ohira, Nobuo Suzuki, Norio Iizuka, Haruhiko Yoshida | 2016-04-26 |
| 9008473 | Optical transmission-reception system and light-receiving unit | Haruhiko Yoshida, Kazuya Ohira | 2015-04-14 |
| 8896076 | Photoelectric conversion element, photoelectric conversion system, and method for production of photoelectric conversion element | Shinji Saito, Rei Hashimoto, Shinya Nunoue, Hironori Asai | 2014-11-25 |
| 8885685 | Semiconductor light emitting device, semiconductor light emitting apparatus, and method for manufacturing semiconductor light emitting | Kazuya Ohira, Haruhiko Yoshida | 2014-11-11 |
| 8855163 | Optical semiconductor device | Haruhiko Yoshida, Kazuya Ohira | 2014-10-07 |
| 8699830 | Optical modulation device | Nobuo Suzuki | 2014-04-15 |
| 8660387 | Athermal ring optical modulator | Nobuo Suzuki | 2014-02-25 |
| 8611392 | Semiconductor laser | Kazuya Ohira, Haruhiko Yoshida | 2013-12-17 |
| 8068704 | Optical waveguide circuit and multi-core central processing unit using the same | Rei Hashimoto, Haruhiko Yoshida | 2011-11-29 |
| 7830937 | Surface emitting type optical semiconductor device | Mitsuhiro Kushibe, Rei Hashimoto, Michihiko Nishigaki | 2010-11-09 |
| 7426228 | Surface emitting type optical semiconductor device | Mitsuhiro Kushibe, Rei Hashimoto, Michihiko Nishigaki | 2008-09-16 |
| 7244629 | Vertical cavity surface emitting laser diode and method for manufacturing the same | Michihiko Nishigaki, Keiji Takaoka | 2007-07-17 |
| 7068696 | Vertical-cavity surface emitting laser diode and its manufacturing method | Michihiko Nishigaki, Keiji Takaoka | 2006-06-27 |
| 6678307 | Semiconductor surface light-emitting device | Keiji Takaoka | 2004-01-13 |
| 6660546 | Method of etching an object, method of repairing pattern, nitride pattern and semiconductor device | — | 2003-12-09 |
| 6531403 | Method of etching an object, method of repairing pattern, nitride pattern and semiconductor device | — | 2003-03-11 |
| 6381300 | Exposure mask, exposure mask manufacturing method, and semiconductor device manufacturing method using exposure mask | — | 2002-04-30 |
| 6366639 | X-ray mask, method of manufacturing the same, and X-ray exposure method | Kenichi Murooka | 2002-04-02 |