Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6968717 | Cylinder lock | Yuichi Yoshizawa, Takeshi Fukasawa, Tatsuya Kurosawa | 2005-11-29 |
| 6487659 | Device and method for conditional authentication | Kenichiro Kigo | 2002-11-26 |
| 5367398 | Optical atmospheric link system | Yujiro Ito, Takashi Otobe | 1994-11-22 |
| 5164245 | Metallized multilayer film | — | 1992-11-17 |
| 5149403 | Fluorine-containing cation exchange membrane for electrolysis and process for producing alkali metal hydroxide by using the same | Tetsuji Shimohira, Yoshiaki Higuchi, Yoshihiko Saito | 1992-09-22 |
| 5083160 | Image density control method and color image forming apparatus | Masao Masumura, Hajime Oyama, Shinichi Namekata | 1992-01-21 |
| 4909912 | Ion exchange membrane cell and electrolytic process using thereof | Yoshio Oda, Takeshi Morimoto | 1990-03-20 |
| 4737821 | Colored image recording device | Tsutomu Shoji, Hideo Yoo | 1988-04-12 |
| 4729819 | Method for restoring the current efficiency | Manabu Suhara, Isamu Takeshita | 1988-03-08 |
| 4666574 | Ion exchange membrane cell and electrolytic process using thereof | Yoshio Oda, Takeshi Morimoto | 1987-05-19 |
| 4661218 | Ion exchange membrane cell and electrolysis with use thereof | Yoshio Oda, Takeshi Morimoto | 1987-04-28 |
| 4655886 | Ion exchange membrane cell and electrolysis with use thereof | Yoshio Oda, Takeshi Morimoto | 1987-04-07 |
| 4655887 | Process for electrolyzing aqueous solution of alkali metal chloride | Yoshio Oda, Takeshi Morimoto | 1987-04-07 |
| 4652356 | Ion exchange membrane and electrolytic cell using thereof | Yoshio Oda, Takeshi Morimoto | 1987-03-24 |
| 4533453 | Ion exchange membrane electrolytic cell | Yoshio Oda, Takeshi Morimoto | 1985-08-06 |
| 4515467 | Magnet brush cleaning apparatus for electrophotographic copying machine | — | 1985-05-07 |
| 4502780 | Photoconductor cleaning apparatus | Hideo Yoo, Yoshio Takamiya | 1985-03-05 |
| 4465570 | Process for producing hydrogen | Yoshio Oda, Takeshi Morimoto | 1984-08-14 |
| 4427523 | Cathode for electrolysis of alkali metal chloride | Yoshio Oda, Takeshi Morimoto | 1984-01-24 |
| 4406536 | Developing device | Toshio Kaneko, Hajime Oyama, Shigekazu Enoki | 1983-09-27 |
| 4341612 | Electrolytic cell | Yoshio Oda, Takeshi Morimoto | 1982-07-27 |
| 4319969 | Aqueous alkali metal chloride electrolytic cell | Yoshio Oda, Takeshi Morimoto | 1982-03-16 |
| 4299682 | Gas diffusion electrode | Yoshio Oda, Takeshi Morimoto | 1981-11-10 |
| 4297182 | Production of alkali metal hydroxide | Yoshio Oda, Takeshi Morimoto | 1981-10-27 |
| 4201465 | Drum cleaning process and apparatus for electrophotography | Hazime Oyama, Manabu Mochizuki, Teruyuki Ohnuma | 1980-05-06 |