Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9422981 | Roller bearing cage and manufacturing method therefor as well as roller bearing manufacturing method | Michiyuki Kamiji, Masaki Okano, Hiroyuki Maeda, Yoshio Kawatake, Yasuki Yabubayashi +1 more | 2016-08-23 |
| 7748783 | Backrest for chair | Yojiro Kinoshita | 2010-07-06 |
| D521755 | Chair | Yojiro Kinoshita, Fritz Frenkler | 2006-05-30 |
| D520764 | Chair | Yojiro Kinoshita, Fritz Frenkler | 2006-05-16 |
| D517335 | Chair | Yojiro Kinoshita, Fritz Frenkler | 2006-03-21 |
| 5896926 | Packer type groundwater sampling system and water sampling method | Katsuhiro Hama, Toshihiro Seo, Koichi Yanagisawa, Katsushi Nakano, Hiroshi Mori +2 more | 1999-04-27 |