Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12398287 | Ink jet recording method and ink jet recording apparatus | Satoshi Takebayashi, Yoshitaka Torisaka, RYO TSUJII, NAO ISHIJIMA, Yuko Negishi | 2025-08-26 |
| 12005726 | Ink jet recording method and ink jet recording apparatus | Eriko Yoshino, RYO TSUJII, Yoshitaka Torisaka, Masanori Yoshida | 2024-06-11 |
| 10661569 | Ink tank and ink jet recording apparatus | Maki Motomura, Taro Endo | 2020-05-26 |
| 10654288 | Ink jet recording method and ink jet recording apparatus | Minako Kawabe | 2020-05-19 |
| 10654279 | Ink tank and ink jet recording apparatus | Taro Endo, Maki Motomura | 2020-05-19 |
| 10280326 | Ink jet recording method and ink jet recording device | Arihiro Saito, Kouhei Nakagawa, Yoshihide Aikawa | 2019-05-07 |
| 9605170 | Ink set and ink jet recording method | Kouhei Nakagawa, Hirofumi Ichinose | 2017-03-28 |
| 9598592 | Ink set and ink jet recording method | Hirofumi Ichinose, Kouhei Nakagawa | 2017-03-21 |
| 9187662 | Ink, ink cartridge and ink jet recording method | Masashi Yamamoto, Shuichi Okazaki, Satoshi Takebayashi | 2015-11-17 |
| 8834621 | Pigment particle, ink, ink cartridge, and ink jet recording method | Satoshi Takebayashi, Yoshio Nakajima, Shuichi Okazaki | 2014-09-16 |
| 8730520 | Image processing method, image processing apparatus and inkjet printing method using determined ejection amounts of ink | Yuji Konno, Hinako Iritani, Yuji Hamasaki, Takeshi Yazawa, Satoshi Seki | 2014-05-20 |
| 8636350 | Ink, ink cartridge, and ink jet recording method | Hideki Takayama, Yoshio Nakajima, Yuhei Shimizu | 2014-01-28 |
| 8602547 | Ink, ink cartridge, and ink jet recording method | Hideki Takayama, Yoshio Nakajima, Yuhei Shimizu | 2013-12-10 |
| 8602546 | Ink, ink cartridge, and ink jet recording method | Yuhei Shimizu, Hideki Takayama, Yoshio Nakajima | 2013-12-10 |
| 8114208 | Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus | Hiroshi Tomioka, Yukako Tamanuki | 2012-02-14 |
| 7981206 | Inkjet ink, method for producing the same, ink cartridge, and inkjet recording method | Daiji Okamura | 2011-07-19 |
| 7615113 | Ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus | Yoshihide Aikawa, Yojiro Kojima | 2009-11-10 |
| 7556502 | Connector and contacts for use in the connector | Takashi Kobayashi, Ryo Kameoka, Hiroki Hihara | 2009-07-07 |
| 6016962 | IC communication card | Masahiro Hirayama | 2000-01-25 |
| 5903369 | Optical wireless communication method and apparatus | Masahiro Hirayama, Kazuhiro Aoyagi | 1999-05-11 |
| 5736727 | IC communication card | Masahiro Hirayama | 1998-04-07 |
| 5706115 | Optical wireless communication method and apparatus | Masahiro Hirayama, Kazuhiro Aoyagi | 1998-01-06 |
| D370904 | Rear portion of an optical communication card | Masahiro Hirayama | 1996-06-18 |