Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7615277 | Formation method of metal layer on resin layer, printed wiring board, and production method thereof | Kenji Takai, Norio Moriike, Kenichi Kamiyama, Kiyoshi Hasegawa | 2009-11-10 |
| 7519049 | Mobile phone system for allowing a user to transmit voice messages | — | 2009-04-14 |
| 7367870 | Polishing fluid and polishing method | Yasushi Kurata, Hiroshi Ono, Yasuo Kamigata, Kazuhiro Enomoto | 2008-05-06 |
| 6090946 | Process for the preparation of 3-(substituted phenyl)-5-alkylidene-1,3-oxazolidine-2,4-dione derivatives | Kenji Hirai, Tomoyuki Yano, Ryuta Ohno, Tomoko Matsukawa, Kiyomi Imai +3 more | 2000-07-18 |
| 5886211 | Process for producing 2-(halomethyl)phenylacetic acid esters | Kenji Hirai, Yoshihiro Takao, Masahide Sugiyama, Yukio Ono, Masahumi Matsuzawa | 1999-03-23 |
| 5612289 | 4-imino-oxazolidine-2-one derivatives, a process for producing such derivatives and a herbicide containing them as an active ingredient | Kenji Hirai, Tomoko Matsukawa, Tomoyuki Yano, Tomoko Yoshii, Takehito Mouri +2 more | 1997-03-18 |