Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12241852 | Gas sensor and method for producing alkaline earth ferrite | Shigenori Matsushima, Kenji C. Obata, Yukiko Ota, Hisakazu Nagata, Koichi Urano | 2025-03-04 |
| 11977042 | Gas sensor and method for manufacturing same | Chika Ito, Ken Takahashi, Tetsuro Tanaka | 2024-05-07 |
| 11370671 | Zinc oxide varistor | Naomi Ishida, Yoji Gomi, Etsurou Udagawa, Yuko ECHIZENYA, Yoshimi Nakata | 2022-06-28 |
| 11370712 | Zinc oxide varistor and method for manufacturing same | Yoji Gomi, Etsurou Udagawa, Yuko ECHIZENYA, Yoshimi Nakata | 2022-06-28 |
| 11264240 | Semiconductor device and method of manufacturing semiconductor device | Haruo Nakazawa | 2022-03-01 |
| 11245010 | Semiconductor device and method of manufacturing semiconductor device | Kosuke Yoshida, Haruo Nakazawa, Koh Yoshikawa, Motoyoshi KUBOUCHI | 2022-02-08 |
| 11069779 | Silicon carbide semiconductor device and method for manufacturing the same | Haruo Nakazawa, Yusuke Wada | 2021-07-20 |
| 10727060 | Doping system, doping method and method for manufacturing silicon carbide semiconductor device | Haruo Nakazawa | 2020-07-28 |
| 10658183 | Impurity adding apparatus, impurity adding method, and semiconductor element manufacturing method | Haruo Nakazawa, Masaaki Ogino | 2020-05-19 |
| 10559664 | Method of manufacturing semiconductor device by removing a bulk layer to expose an epitaxial-growth layer and by removing portions of a supporting-substrate to expose portions of the epitaxial-growth layer | Haruo Nakazawa | 2020-02-11 |
| 10453687 | Method of manufacturing semiconductor device | Haruo Nakazawa | 2019-10-22 |
| 10109501 | Manufacturing method of semiconductor device having a voltage resistant structure | Koh Yoshikawa, Haruo Nakazawa, Yasukazu Seki, Katsuya Okumura | 2018-10-23 |
| 9972499 | Method for forming metal-semiconductor alloy using hydrogen plasma | Haruo Nakazawa, Masaaki Ogino, Tsunehiro Nakajima, Masaaki Tachioka, Kiyokazu Nakagawa | 2018-05-15 |
| 9892919 | Semiconductor device manufacturing method | Haruo Nakazawa, Masaaki Tachioka, Naoto Fujishima, Masaaki Ogino, Tsunehiro Nakajima | 2018-02-13 |
| 9825145 | Method of manufacturing silicon carbide semiconductor device including forming an electric field control region by a laser doping technology | Koh Yoshikawa, Haruo Nakazawa, Yasukazu Seki | 2017-11-21 |
| 9786749 | Semiconductor device having a voltage resistant structure | Koh Yoshikawa, Haruo Nakazawa, Yasukazu Seki, Katsuya Okumura | 2017-10-10 |
| 9779968 | Method for processing semiconductor substrate and method for manufacturing semiconductor device in which said processing method is used | — | 2017-10-03 |
| 9716008 | Apparatus for doping impurities, method for doping impurities, and method for manufacturing semiconductor device | — | 2017-07-25 |
| 9659774 | Impurity introducing method, impurity introducing apparatus, and method of manufacturing semiconductor element | Haruo Nakazawa, Masaaki Ogino | 2017-05-23 |
| 9659775 | Method for doping impurities, method for manufacturing semiconductor device | Akihiro Ikeda, Hiroshi Ikenoue, Tanemasa Asano, Haruo Nakazawa, Koh Yoshikawa +1 more | 2017-05-23 |
| 9577032 | Semiconductor device | — | 2017-02-21 |
| 9564334 | Method of manufacturing a semiconductor device | Haruo Nakazawa, Tsunehiro Nakajima, Masaaki Ogino, Masaaki Tachioka | 2017-02-07 |
| 9548205 | Method of manufacturing a semiconductor device | Haruo Nakazawa, Masaaki Ogino, Tsunehiro Nakajima, Masaaki Tachioka | 2017-01-17 |
| 9355858 | Method of manufacturing semiconductor device | Hiroki Wakimoto, Koh Yoshikawa, Tsunehiro Nakajima, Shunsuke Tanaka, Masaaki Ogino | 2016-05-31 |
| 8604584 | Semiconductor device and method of manufacturing semiconductor device | Hiroki Wakimoto, Koh Yoshikawa, Tsunehiro Nakajima, Shunsuke Tanaka, Masaaki Ogino | 2013-12-10 |