Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8899723 | Waste liquid container and image forming apparatus | Kazuki Suzuki | 2014-12-02 |
| 8684347 | Sheet amount indicator and image forming apparatus with amplifying mechanism | Yoshihide Sugiyama | 2014-04-01 |
| 8231201 | Inkjet recording device | — | 2012-07-31 |
| 8094890 | Biometric authentication apparatus, biometric authentication system, IC card and biometric authentication method | Makoto Aikawa, Shoko Hatanaka, Kazunori Hashimoto, Yutaka Takami | 2012-01-10 |
| 7712892 | Image forming apparatus | Hajime Nishida, Manabu Nonaka, Eiki Yoshimizu, Shinichiro Naruse, Yasuhiro Kawashima +10 more | 2010-05-11 |
| 7505714 | Image forming device | Shoji Asanuma, Shuji Tanaka, Manabu Nonaka, Kazumasa Ishikawa, Taku Kudoh +8 more | 2009-03-17 |
| 7431422 | Head cleaner and image forming apparatus | Shoji Asanuma, Manabu Nonaka, Hajime Nishida, Akihiro Fujita, Eiki Yoshimizu +5 more | 2008-10-07 |
| 7317546 | Certification method and device and certificate issuer system | Tomomi Haruna, Yoshiisa Inoue | 2008-01-08 |
| 6484946 | IC card information display device and IC card for use therewith | Kenji Matsumoto, Yutaka Takami, Masayuki Inoue, Koichi Yoneta, Tetsuharu Inamitsu +1 more | 2002-11-26 |
| 6339638 | Telephone used for electronic money card transaction and method of operation of the same | Masayuki Ohki, Atsuhiko Urushibara, Jun Furuya, Hiroki Kitagawa, Takao Oosawa | 2002-01-15 |
| 5895903 | Terminal for portable IC card | Yuhei Abe, Atsuhiko Urushihara, Masayuki Ohki | 1999-04-20 |
| 4843488 | Noise elimination circuit for reproduction of audio signals in a magnetic tape recording and reproducing apparatus | Yoshizumi Watatani | 1989-06-27 |
| 4490753 | Audio signal recording and reproducing circuit | Yoshizumi Watatani | 1984-12-25 |
| 4481546 | Modulator-demodulator for obtaining and demodulating frequency-modulated signal | Yoshizumi Watatani, Hitoaki Owashi | 1984-11-06 |
| 4453186 | Video and sound signal recording and reproducing device | Yoshizumi Watatani, Katsuo Mohri | 1984-06-05 |
| 4403262 | Audio signal muting circuit for magnetic recording and reproducing apparatus | Yoshizumi Watatani | 1983-09-06 |