Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4745806 | Level gauge for liquid helium | Tsuyoshi Masumoto, Uichiro Mizutani, Masami Ishii, Hiroshi Motoyama, Ryohei Yabuno | 1988-05-24 |
| 4726988 | Vertical magnetic recording medium | Kenji Hayashi, Takayoshi Akamatsu, Satoshi Horiuchi | 1988-02-23 |
| 4655079 | Level gauge for liquid helium | Tsuyoshi Masumoto, Akihisa Inoue, Masami Ishii, Hiroshi Motoyama, Ryohei Yabuno | 1987-04-07 |