Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10669210 | Silicon nitride sintered substrate, silicon nitride sintered substrate sheet, circuit substrate, and production method for silicon nitride sintered substrate | Suguru Fujita, Youichirou Kaga, Hiroyuki Teshima, Shigeyuki Hamayoshi | 2020-06-02 |
| 10559509 | Insulating substrate and semiconductor device using same | Hiroshi Hozoji, Kenji Hayashi, Hiroyuki Itoh, Hiroyuki Nagatomo | 2020-02-11 |
| 10057992 | Ceramic circuit substrate and its production method | Hiroyuki Teshima, Junichi Watanabe | 2018-08-21 |
| 9780011 | Brazing material, brazing material paste, ceramic circuit substrate, ceramic master circuit substrate, and power semiconductor module | Suguru Fujita, Junichi Watanabe | 2017-10-03 |
| 8858865 | Silicon nitride substrate manufacturing method, silicon nitride substrate, silicon nitride circuit substrate, and semiconductor module | Youichirou Kaga, Junichi Watanabe | 2014-10-14 |
| 8563869 | Circuit board and semiconductor module using this, production method for circuit board | Youichirou Kaga, Junichi Watanabe | 2013-10-22 |
| 7915533 | Silicon nitride substrate, a manufacturing method of the silicon nitride substrate, a silicon nitride wiring board using the silicon nitride substrate, and semiconductor module | Youichirou Kaga, Hiromi Kikuchi, Junichi Watanabe | 2011-03-29 |
| 7372132 | Resin encapsulated semiconductor device and the production method | Kazuhiro Suzuki, Toshiaki Morita, Junichi Watanabe, Mitsuaki Chiba | 2008-05-13 |
| 7031166 | Silicon nitride powder, silicon nitride sintered body, sintered silicon nitride substrate, and circuit board and thermoelectric module comprising such sintered silicon nitride substrate | Shigeyuki Hamayoshi, Tsunehiro Kawata, Masahisa Sobue | 2006-04-18 |
| 6846765 | Silicon nitride powder, silicon nitride sintered body, sintered silicon nitride substrate, and circuit board and thermoelectric module comprising such sintered silicon nitride substrate | Shigeyuki Hamayoshi, Tsunehiro Kawata, Masahisa Sobue | 2005-01-25 |
| 5968426 | Method of producing porous silicon nitride ceramics having high strength and low thermal conductivity | Kiyoshi Hirao, Manuel E. Brito, Motohiro Toriyama, Syuzo Kanzaki, Takene Hirai +1 more | 1999-10-19 |