Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8288804 | Field effect transistor and method for manufacturing the same | Hiroaki Kikuchi, Osamu Takahashi, Katsunori Kondo, Tomoaki Yamabayashi, Tadashi Ishigaki +3 more | 2012-10-16 |
| 8173824 | Process for producing vitamin D derivative using convergent method | Takashi Emura, Akira Kawase, Koji Takano, Keisuke Yamamoto, Yoshiaki Kato | 2012-05-08 |
| 7510933 | Fabrication method of semiconductor integrated circuit device | Osamu Takahashi | 2009-03-31 |
| 7253011 | Fabrication method of semiconductor integrated circuit device | Osamu Takahashi | 2007-08-07 |
| 7102018 | Intermediates and improved processes for the preparation of neplanocin A | Naoyuki Yoshida | 2006-09-05 |
| 7053225 | Intermediates and improved processes for the preparation of neplanocin A | Naoyuki Yoshida | 2006-05-30 |
| 7053224 | Intermediates and improved processes for the preparation of neplanocin A | Naoyuki Yoshida | 2006-05-30 |
| 7015119 | Fabrication method of semiconductor integrated circuit device | Osamu Takahashi | 2006-03-21 |
| 6949553 | Aliphatic compounds, their synthesis method, and utilization of the same | Tadakazu Tamai, Kazuyoshi Yoshikai, Masazumi Nishikawa, Itsuki Murota | 2005-09-27 |
| 6642424 | Intermediates and improved processes for the preparation of neplanocin A | Naoyuki Yoshida | 2003-11-04 |
| 6495725 | Process for the preparation of optically active enones and intermediates thereof | — | 2002-12-17 |
| 6437133 | Method of catalytically removing a protective group containing an allyl group using a reducing agent | Takahiko Taniguchi | 2002-08-20 |
| 6335458 | Intermediate compounds in the synthesis of the A ring moiety of 2-substituted vitamin D derivatives | Michiyasu Takahashi | 2002-01-01 |
| 6313353 | Method for producing an optically active acyloin | Takahiko Taniguchi | 2001-11-06 |
| 6265209 | Intermediates and improved processes for the preparation of neplanocin A | Naoyuki Yoshida | 2001-07-24 |
| 5900369 | Method for producing oxodicyclopentadiene | Takahiko Taniguchi | 1999-05-04 |
| 5731464 | Process for preparation of indenol | — | 1998-03-24 |
| 5567851 | Cyclohexene diol derivatives | Seiichi Takano | 1996-10-22 |
| 5504255 | Optically active compounds and a method for producing them | Seiichi Takano | 1996-04-02 |
| 5504219 | Optically active compounds and intermediates thereof, and process for manufacturing same | Seiichi Takano | 1996-04-02 |
| 5446175 | Optically active compounds and a method for producing them | Seiichi Takano | 1995-08-29 |
| 5442098 | Cyclohexene diol derivatives | Seiichi Takano | 1995-08-15 |
| 5424462 | Method for producing (+)-estrone derivatives | Seiichi Takano | 1995-06-13 |
| 5401436 | Optically active compound | Seiichi Takano, Toshihiro Shibata, Masaki Kimura, Norio Kurosawa | 1995-03-28 |
| 5374768 | Cyclohexene derivatives | Seiichi Takano | 1994-12-20 |