Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350964 | Ultrasonic transducer and method of manufacturing the same | Kazuhiro Watanabe, Hiroshi Ishikawa, Kiyoto Matsui, Kenji Kawabe, Takaki Shimura | 1994-09-27 |
| 5321160 | Process for producing an ethylenamine | Toshio Hironaka, Noritaka Nagasaki | 1994-06-14 |