Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862000 | Method for predicting density of micro crystal defects in semiconductor element from silicon wafer used in the manufacture of the element, and infrared absorption measurement apparatus for this method | Atsuko Kubota, Yoshiaki Matsushita | 1989-08-29 |
| 4638552 | Method of manufacturing semiconductor substrate | Masaru Shimbo, Kiyoshi Fukuda | 1987-01-27 |
| 4340186 | Flyer-type coil winding machine | Sachio Shimada | 1982-07-20 |