Issued Patents All Time
Showing 76–91 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7750190 | Method for producing new polynuclear poly(formylphenol) | Akira Yoshitomo, Tatsuya Iwai | 2010-07-06 |
| 7570467 | Electrostatic protection circuit | Hiroyuki Yoshinaga | 2009-08-04 |
| 7538999 | Semiconductor device having electrostatic protection circuit | — | 2009-05-26 |
| 7456323 | 1,3-bis(3-formyl-4-hydroxyphenyl)adamantanes and polynuclear polyphenols derived therefrom | Akira Yoshitomo, Tatsuya Iwai | 2008-11-25 |
| 7394631 | Electrostatic protection circuit | Koichi Sato, Takayuki Hiraoka | 2008-07-01 |
| D536297 | Pontoon | Yuji Awashima, Kazuhiko Tsunoo | 2007-02-06 |
| D535607 | Pontoon | Yuji Awashima, Kazuhiko Tsunoo | 2007-01-23 |
| 6956747 | Semiconductor device | Naoyuki Shigyo, Takayuki Hiraoka | 2005-10-18 |
| 6950341 | Semiconductor memory device having plural sense amplifiers | Yoshinori Takano | 2005-09-27 |
| 6932171 | Ground drilling machine | Toyohiko Youan, Eiichi Muramoto, Kazuyuki Yamazaki | 2005-08-23 |
| 6921959 | Semiconductor device | — | 2005-07-26 |
| 6913094 | Leading body for ground drilling and ground drilling machine | Toyohiko Youan, Eiichi Muramoto, Touru Hishiyama | 2005-07-05 |
| 6720460 | Hydroxyphenyl adamantanes and process for the production of the same | Akira Yoshikawa, Kenji Ekawa, Kazuhiko Yao, Miwa Hazama | 2004-04-13 |
| 6637525 | Ground drilling machine and rod exchanger utilized therefor | Toyohiko Youan, Kazuyuki Yamazaki, Tooru Hishiyama | 2003-10-28 |
| 6600679 | Level shifter for converting a voltage level and a semiconductor memory device having the level shifter | Toru Tanzawa | 2003-07-29 |
| 6584011 | Magnetic random access memory | — | 2003-06-24 |