Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347256 | Rotary transformer | Naoto Yumiki, Akiharu Jinno | 1994-09-13 |
| 5343338 | Tape drive apparatus | Shigeki Murata, Haruo Isaka, Yasushi Sogabe | 1994-08-30 |
| 5317782 | System for cleaning an inside surface of a duct | Katsumi Toritani | 1994-06-07 |
| 5311641 | Apparatus for determining any contamination of dust, etc., in a duct prior to cleaning the duct | Katsumi Toritani | 1994-05-17 |