Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862448 | Disc cartridge and casing therefor | Kimio Tanaka, Masaru Ikebe | 1989-08-29 |
| 4853816 | Casing for cassette magnetic tape | Takateru Satoh, Kimio Tanaka | 1989-08-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862448 | Disc cartridge and casing therefor | Kimio Tanaka, Masaru Ikebe | 1989-08-29 |
| 4853816 | Casing for cassette magnetic tape | Takateru Satoh, Kimio Tanaka | 1989-08-01 |