Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168393 | Gallium nitride sintered body or gallium nitride molded article, and method for producing same | Masami MESUDA, Keitaro Matsumaru, Ryou Kikuchi, Tetsuo Shibutami | 2021-11-09 |
| 10174419 | Gallium nitride sintered body or gallium nitride molded article, and method for producing same | Masami MESUDA, Keitaro Matsumaru, Ryou Kikuchi, Tetsuo Shibutami | 2019-01-08 |
| 8637154 | Ceramic beads with smooth surfaces and process for producing the same | Masanori Kohgo | 2014-01-28 |
| 7531232 | Component for vacuum apparatus, production method thereof and apparatus using the same | Osamu Matsunaga, Michio Okamoto | 2009-05-12 |
| 7504164 | Corrosion-resistant member and process of producing the same | Masanori Abe | 2009-03-17 |
| 7338699 | Island projection-modified part, method for producing the same, and apparatus comprising the same | Masanori Kohgo, Osamu Matsunaga | 2008-03-04 |
| 7081290 | Quartz glass thermal sprayed parts and method for producing the same | Masanori Kohgo | 2006-07-25 |
| 6902814 | Quartz glass parts, ceramic parts and process of producing those | Michio Okamoto, Masanori Abe | 2005-06-07 |
| 6804189 | Near field optical recording medium | Toshio Inase, Koji Katayama, Tatsuo Kawasaki, Kenichi Sekimoto, Toru Futami +1 more | 2004-10-12 |
| 6802073 | Magneto-optical recording medium | Toshio Inase, Keiichiro Nishizawa | 2004-10-05 |
| 6798734 | Optical recording medium having address pits in the header region connecting with each other | Tatsuo Kawasaki, Kenichi Sekimoto, Toru Futami, Shigeru Hiramatsu, Mutsumi Asano +2 more | 2004-09-28 |
| 6506469 | Surface-side reproduction type optical recording medium | Koji Katayama, Keiichiro Nishizawa | 2003-01-14 |
| 6118736 | Magneto-optical recording medium having a reading layer in which transferred recording marks are extended | Koji Katayama | 2000-09-12 |