Issued Patents All Time
Showing 26–50 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10566303 | Semiconductor element | — | 2020-02-18 |
| 10559547 | Semiconductor chip | Masahiro Shibata, Daisuke Tokuda, Hiroaki Tokuya, Yasunari Umemoto | 2020-02-11 |
| 10541320 | Bipolar transistor and method for producing the same | Yasunari Umemoto, Shigeki Koya | 2020-01-21 |
| 10297680 | Bipolar transistor and method for producing the same | Yasunari Umemoto, Shigeki Koya | 2019-05-21 |
| 10209645 | Vertical biaxial developing device and image forming apparatus and process cartridge incorporating same | Yuuki Tsuchiya, Masayuki Yamane, Keiichi Yoshida, Toshiki Hayashi, Tatsuya OHHIRA | 2019-02-19 |
| 10168642 | Developing device and image forming apparatus and process cartridge incorporating same | Tatsuya OHHIRA, Masayuki Yamane, Keiichi Yoshida, Toshiki Hayashi, Yuuki Tsuchiya | 2019-01-01 |
| 10163749 | Semiconductor device and method of manufacturing the same | Masayuki Aoike, Atsushi Kobayashi | 2018-12-25 |
| 10157812 | Semiconductor device and method of manufacturing the same | Masayuki Aoike, Atsushi Kobayashi | 2018-12-18 |
| 10147809 | Semiconductor device | Yasunari Umemoto, Tsunekazu Saimei | 2018-12-04 |
| 10114334 | Developing device with casing having upper and lower compartments | Tatsuya OHHIRA, Masayuki Yamane, Keiichi Yoshida, Toshiki Hayashi, Yuuki Tsuchiya | 2018-10-30 |
| 10002950 | Bipolar transistor and method for producing the same | Yasunari Umemoto, Shigeki Koya | 2018-06-19 |
| 9864297 | Developing device and image forming apparatus and process cartridge incorporating same | Tatsuya OHHIRA, Masayuki Yamane, Keiichi Yoshida, Toshiki Hayashi, Shunji Katoh | 2018-01-09 |
| 9862167 | Laminate including antireflective moth-eye film and protection film | Tokio Taguchi, Takayuki Arai, Satoru Shoshi | 2018-01-09 |
| 9397204 | Heterojunction bipolar transistor with two base layers | Isao Obu, Yasunari Umemoto | 2016-07-19 |
| 9362268 | Semiconductor integrated circuit device with transistor and non-transistor regions | Shinya Osakabe | 2016-06-07 |
| 9331187 | Bipolar transistor | Yasunari Umemoto, Tsunekazu Saimei | 2016-05-03 |
| 9130004 | Heterojunction bipolar transistor, power amplifier including the same, and method for fabricating heterojunction bipolar transistor | Isao Obu, Yasunari Umemoto | 2015-09-08 |
| 9008556 | Development device and image forming apparatus and process unit incorporating same | Yuuji Ishikura, Katsuhiro Aoki, Masaaki Yamada, Masayuki Yamane, Yuuki Satoh | 2015-04-14 |
| 8948638 | Image forming apparatus | Yuji Ishikura, Yasuyuki Ishii, Hideki Kosugi, Tetsuro Hirota, Masaaki Yamada +4 more | 2015-02-03 |
| 8929782 | Development device, and image forming apparatus and process cartridge incorporating same | Osamu Endou, Yasuyuki Ishii, Tetsuro Hirota, Yoshiko Ogawa, Yuuji Ishikura +1 more | 2015-01-06 |
| 8897681 | Developing device, image forming apparatus, and image forming method | Tetsuro Hirota, Hideki Kosugi, Masaaki Yamada, Hideyasu Seki, Yasuyuki Ishii | 2014-11-25 |
| 8824935 | Development device, process cartridge incorporating same, and image forming apparatus incorporating same | Hideyasu Seki, Yasuyuki Ishii, Hideki Kosugi, Tetsuro Hirota, Masaaki Yamada | 2014-09-02 |
| 8594540 | Development device, process cartridge incorporating same, and image forming apparatus incorporating same | Tetsuro Hirota, Hideki Kosugi, Yoshiko Ogawa, Hideyasu Seki, Masaaki Yamada +1 more | 2013-11-26 |
| 8588635 | Development device, process cartridge incorporating same, and image forming apparatus incorporating same | Yoshiko Ogawa, Yasuyuki Ishii, Hideki Kosugi, Masaaki Yamada, Yuji Ishikura | 2013-11-19 |
| 8483598 | Electrophotographic image forming method and apparatus with a cover film supplying device | Shigekazu Enoki, Takuya Suganuma, Ryuji Yoshida, Yoshinori Nakagawa, Ichiro Kadota +8 more | 2013-07-09 |