Issued Patents All Time
Showing 51–75 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9817325 | Benzidine derivative, method for producing benzidine derivative, and electrophotographic photosensitive member | — | 2017-11-14 |
| 9791793 | Electrophotographic photosensitive member | — | 2017-10-17 |
| 9783493 | Quinone derivative and electrophotographic photosensitive member | Fumio Sugai, Kensuke Kojima | 2017-10-10 |
| 9783491 | Quinone derivative and electrophotographic photosensitive member | Fumio Sugai, Kensuke Kojima | 2017-10-10 |
| 9690217 | Triarylamine derivative, electrophotographic photosensitive member, and image forming apparatus | Fumio Sugai, Kensuke Kojima, Hiroki Tsurumi, Yohei Yamamoto, Eiichi Miyamoto | 2017-06-27 |
| 9684254 | Diamine compound and electrophotographic photosensitive member | — | 2017-06-20 |
| 9684253 | Triphenylamine derivative, electrophotographic photosensitive member, and image forming apparatus | Kensuke Kojima, Fumio Sugai, Hiroki Tsurumi, Yohei Yamamoto, Eiichi Miyamoto | 2017-06-20 |
| 9581921 | Electrophotographic photosensitive member | Fumio Sugai, Kensuke Kojima | 2017-02-28 |
| 9494881 | Triarylamine derivative and electrophotographic photosensitive member | Fumio Sugai, Kensuke Kojima | 2016-11-15 |
| 9454091 | Hydrazone derivative of triphenylamine and electrophotographic photosensitive member | Kensuke Kojima, Fumio Sugai | 2016-09-27 |
| 9447022 | Triarylamine derivative and electrophotographic photosensitive member | Fumio Sugai, Kensuke Kojima | 2016-09-20 |
| 9436105 | Triarylamine derivative and electrophotographic photosensitive member | Kensuke Kojima, Fumio Sugai | 2016-09-06 |
| 9429859 | Electrophotographic photosensitive member | Jun Azuma | 2016-08-30 |
| 9404547 | Steel for high-strength spring, method for producing same, and high-strength spring | Akira Tange, Koichi Tango, Isao Sumiyoshi | 2016-08-02 |
| 9383664 | Electrophotographic photosensitive member | — | 2016-07-05 |
| 9376371 | Triphenylamine derivative, method for manufacturing the same, and electrophotographic photosensitive member | Fumio Sugai, Kensuke Kojima, Kenji KITAGUCHI | 2016-06-28 |
| 9348243 | Electrophotographic photosensitive member | — | 2016-05-24 |
| 9314870 | Friction stir spot welding device and friction stir spot welding method | Hajime Kashiki, Kazumi Fukuhara, Mitsuo Fujimoto | 2016-04-19 |
| 9302343 | Process for spot-joining stacked metal foils | Masaki Kumagai, Arinobu Mori, Kenji Hayafuji | 2016-04-05 |
| 9256144 | Electrophotographic photosensitive member and image forming apparatus | Keiji Maruo | 2016-02-09 |
| 9193151 | Ink jet recording method | Masaru Kumagai, Takamasa Ikagawa | 2015-11-24 |
| 9109133 | Ink jet ink and recorded object | Soichi Yamazaki, Hiroaki KUMETA, Daisuke Ishihara | 2015-08-18 |
| 9095926 | Friction stir spot welding device and friction stir spot welding method | Hajime Kashiki, Kazumi Fukuhara, Mitsuo Fujimoto | 2015-08-04 |
| 9023564 | Azoquinone compound, electrophotographic photoconductor, and image forming apparatus | Keiji Maruo | 2015-05-05 |
| 9004664 | Ink jet recording aqueous pigment ink | Soichi Yamazaki, Rie Miyazaki, Miharu Kanaya, Hiroshi Kato, Ayako Nishiki | 2015-04-14 |