Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7865214 | Radio communication terminal, radio communication terminal housing case, radio communication terminal sheet and radio communication terminal display device | — | 2011-01-04 |
| D311391 | Data recording cartridge for language learning machine | Akito Ueshin, Shinichi Ishigame | 1990-10-16 |
| 4896028 | Surge absorption apparatus | — | 1990-01-23 |
| 4825060 | Portable memory medium | — | 1989-04-25 |
| 4785166 | Reader/writer for portable recording medium with power supply abnormality detection | — | 1988-11-15 |
| 4767918 | Reading and writing apparatus for portable recording medium | Tsutomu Tanaka | 1988-08-30 |