Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7968176 | Air filter material | Kazumasa Mizui | 2011-06-28 |
| 7652358 | Semiconductor device including main substrate and sub substrates | Atsushi Minakawa, Mamoru Sekiya | 2010-01-26 |
| 6984887 | Heatsink arrangement for semiconductor device | Sadatoshi Hisamoto, Kazutaka Murayama | 2006-01-10 |
| 6765449 | Pulse width modulation circuit | Kazutaka Murayama, Sadatoshi Hisamoto, Yoshitaka Handa, Shuichi HIZA | 2004-07-20 |
| 5240767 | Nonwoven fabrics for printing | Toshiyuki Nishijima, Sampei Kobayashi, Noboru Tsukahara, Shinichi FUKUI | 1993-08-31 |
| 5198294 | Composite air-filtering material | Takuichiro Masuda, Yutaka Saisho | 1993-03-30 |