Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338377 | Ball-and-roller bearing | Nobuaki Mitamura | 1994-08-16 |
| 5298323 | Bearing steel and rolling bearing made thereof | Hiroshi Narai, Tsutomu Abe | 1994-03-29 |
SO
Shigeru Okita
Nippon Seiko Co.: 1 patents #1 of 4Top 25%
Overall (1994): #19,869 of 165,921Top 15%
2
Patents 1994