Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475133 | Methods for making 2-(&ohgr;-alkoxycarbonylalkanoyl)-4-butanolide, ester of omega-hydroxy-(&ohgr;-3)-ketoaliphatic acid, and derivatives thereof | Hideaki Takaoka, Sigeru Wada, Akio Hasebe, Shinzo Imamura, Hideo Muraoka | 2002-11-05 |
| 6438035 | Nonvolatile semiconductor storage device | Kaoru Yamamoto, Yoshimitsu Yamauchi | 2002-08-20 |
| 6340020 | Stroke identifying unit of a four-stroke engine | Ryutaro Yamazaki, Yasuo Iwata | 2002-01-22 |