Issued Patents All Time
Showing 1–25 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12326672 | Developing sleeve and electrophotographic image forming apparatus | Kazutoshi Kobayashi, Yukio Hosoya, Akihiko Itami | 2025-06-10 |
| 10324386 | Electrophotographic photoreceptor, image forming apparatus, image forming method, production method of electrophotographic photoreceptor | Haruo Horiguchi | 2019-06-18 |
| 10295126 | Lighting device | Toshio Watanabe, Yusaku Kawabata | 2019-05-21 |
| 10203615 | Electrophotographic photoreceptor, image forming apparatus, image forming method, and method of producing electrophotographic photoreceptor | Haruo Horiguchi, Tomohiro Oshiyama | 2019-02-12 |
| 10073365 | Electrophotographic photoreceptor, method of producing electrophotographic photoreceptor, and apparatus of forming electrophotographic image | Mari Ueda, Haruo Horiguchi | 2018-09-11 |
| 9869942 | Imaging apparatus and process of forming image with electrophotographic photoreceptor having protective layer containing particulate P-type semiconductor | Keiichi Inagaki, Kazuteru Ishizuka, Mari Ueda, Daisuke Kodama | 2018-01-16 |
| 9841716 | Electrophotographic photoreceptor, image forming apparatus, and image forming process | Masanori YUMITA, Daisuke Kodama | 2017-12-12 |
| 9732916 | Lighting device | Toshio Watanabe, Yusaku Kawabata | 2017-08-15 |
| 9733581 | Electrophotographic photoreceptor, electrophotographic image forming method and electrophotographic image forming apparatus | Keiichi Inagaki, Mari Konishi, Daisuke Kodama | 2017-08-15 |
| 9587813 | Lighting device | Toshio Watanabe, Yusaku Kawabata | 2017-03-07 |
| 9541848 | Electrophotographic photoreceptor | Mari Konishi, Daisuke Kodama, Takeshi Nakamura, Toyoko Shibata | 2017-01-10 |
| 9436108 | Electrophotographic photoreceptor | Daisuke Kodama, Hirofumi Hayata | 2016-09-06 |
| 9417539 | Organic photoreceptor, image forming apparatus, and image forming method | Keiichi Inagaki, Mari Konishi, Masanori YUMITA | 2016-08-16 |
| 9379284 | Nitride semiconductor light emitting chip, and nitride semiconductor light emitting device | Akira Inoue, Masaki Fujikane, Toshiya Yokogawa | 2016-06-28 |
| 9341888 | Light reflection sheet, light source device, and display device | Hideto Takeuchi, Tatsuo Sugahara, Yuuki Kawamura, Mamoru Yahata, Hiroshi Takahashi +6 more | 2016-05-17 |
| 9303833 | Lighting device | Toshio Watanabe, Yusaku Kawabata | 2016-04-05 |
| 9276171 | Nitride semiconductor light-emitting diode | Toshiya Yokogawa, Akira Inoue | 2016-03-01 |
| 9196794 | Semiconductor light-emitting device, method for forming recesses of the same, and light source apparatus using the same | Akira Inoue, Toshiya Yokogawa | 2015-11-24 |
| 9175828 | Reflection sheet light source device and display device | Hideto Takeuchi, Tatsuo Sugahara, Yuuki Kawamura, Mamoru Yahata, Hiroshi Takahashi +6 more | 2015-11-03 |
| 9142853 | Fuel cell stack and electronic device provided with the same | Masashi Muraoka, Tomohisa Yoshie, Hironori Kambara | 2015-09-22 |
| 9130388 | Contactless electricity-supplying device | Ryoji Matsui, Hironori Kambara, Masayoshi Ozaki | 2015-09-08 |
| 9104064 | Light source device, illuminating device, backlight device, liquid crystal display device and display device | Hideto Takeuchi, Tatsuo Sugahara, Yuuki Kawamura, Mamoru Yahata, Hiroshi Takahashi +6 more | 2015-08-11 |
| 9097403 | Light source device and display device | Hideto Takeuchi, Hiroshi Takahashi, Tatsuo Sugahara, Keita Ito, Yuuki Kawamura +6 more | 2015-08-04 |
| 8962363 | Method for forming a groove on a surface of flat plate formed of a nitride semiconductor crystal | Akira Inoue, Toshiya Yokogawa | 2015-02-24 |
| 8962226 | Organic photoreceptor, image forming apparatus, and process cartridge | Seisuke Maeda, Takeshi Ishida, Masahiko Kurachi, Seijiro Takahashi | 2015-02-24 |