Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5389804 | Resonant-tunneling heterojunction bipolar transistor device | Kenichi Imamura | 1995-02-14 |
| 5311465 | Semiconductor memory device that uses a negative differential resistance | Toshihiko Mori | 1994-05-10 |
| 5214297 | High-speed semiconductor device | Kenichi Imamura, Toshio Ohshima | 1993-05-25 |
| 5200349 | Semiconductor device including schotky gate of silicide and method for the manufacture of the same | — | 1993-04-06 |
| 5173548 | Epoxy-modified hydrocarbon resins | — | 1992-12-22 |
| 5151618 | Resonant-tunneling heterojunction bipolar transistor device | Kenichi Imamura | 1992-09-29 |
| 5130766 | Quantum interference type semiconductor device | Hiroshi Arimoto, Shunichi Muto, Shigehiko Sasa, Makoto Okada | 1992-07-14 |
| 5031005 | Semiconductor device | Toshiro Futatsugi, Kenichi Imamura | 1991-07-09 |
| 5027179 | Resonant-tunneling heterojunction bipolar transistor device | Kenichi Imamura | 1991-06-25 |
| 5021863 | Semiconductor quantum effect device having negative differential resistance characteristics | Toshio Fujii | 1991-06-04 |
| 5003360 | Semiconductor functional element | Makoto Okada | 1991-03-26 |
| 4989052 | Quantum effect semiconductor device | Makoto Okada | 1991-01-29 |
| 4956681 | Ternary logic circuit using resonant-tunneling transistors | Masao Taguchi | 1990-09-11 |
| 4903090 | Semiconductor device | — | 1990-02-20 |
| 4889831 | Method of forming a high temperature stable ohmic contact to a III-V substrate | Kazuaki Ishii, Toshiro Futatsugi, Toshio Oshima, Toshio Fujii, Akihiro Shibatomi | 1989-12-26 |
| 4849934 | Logic circuit using resonant-tunneling transistor | Toshihiko Mori | 1989-07-18 |
| 4837178 | Method for producing a semiconductor integrated circuit having an improved isolation structure | Toshio Ohshima | 1989-06-06 |
| 4821090 | Compound semiconductor integrated circuit device | — | 1989-04-11 |
| 4712121 | High-speed semiconductor device | — | 1987-12-08 |
| 4617724 | Process for fabricating heterojunction bipolar transistor with low base resistance | Toshio Ohshima | 1986-10-21 |
| 4609903 | Thin film resistor for an integrated circuit semiconductor device | Nobuo Toyokura, Toyokazu Ohnishi | 1986-09-02 |
| 4566021 | Semiconductor device | — | 1986-01-21 |
| 4522540 | Method and apparatus for removing cutting burr sticking to lower surface of slab | Nobuhisa Hasebe, Hiroshi Kawada, Shigeki Komori | 1985-06-11 |
| 4490496 | Moistureproof insulating coating composition for packing circuit boards | Iwao Maekawa, Eiji Omori, Isao Uchigasaki, Hideyuki Tobita, Seikichi Tanno +2 more | 1984-12-25 |