Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10442095 | Rotary electric shaver | Tetsuhiko Shimizu | 2019-10-15 |
| 10357889 | Inner blade of rotary electric shaver | Koichi ODAGIRI | 2019-07-23 |
| 9789616 | Rotary electric shaver | — | 2017-10-17 |
| 7621050 | Inner cutter for a reciprocating type electric shaver | Masaki Okabe, Tetsuhiko Shimizu | 2009-11-24 |
| 6954966 | Cleaner for use in nursing care | Tetsuhiko Shimizu | 2005-10-18 |
| 5289408 | Memory apparatus using tunnel current techniques | Hiroshi Kajimura, Toshihito Kouchi, Akitoshi Toda, Yasuo Isono, Hiroko Ohta +1 more | 1994-02-22 |
| 5216254 | Circuit pattern forming apparatus using MU-STM | Hiroko Ohta, Ryouhei Shimizu, Toshihito Kouchi, Akitoshi Toda, Yasuo Isono +1 more | 1993-06-01 |
| 5144581 | Apparatus including atomic probes utilizing tunnel current to read, write and erase data | Akitoshi Toda, Ryouhei Shimizu, Hiroko Ohta, Hiroshi Kajimura, Yasuo Isono +1 more | 1992-09-01 |
| 5091880 | Memory device | Yasuo Isono, Toshihito Kouchi, Akitoshi Toda, Hiroshi Kajimura, Hiroko Ohta +1 more | 1992-02-25 |
| 5077762 | Charge transfer device having MIM structures and method for driving the same | Masamichi Morimoto, Hiroshi Nakano | 1991-12-31 |
| 5053995 | Tunnel current data storage apparatus having separate lever bodies | Hiroshi Kajimura, Toshihito Kouchi, Akitoshi Toda, Yasuo Isono, Hiroko Ohta +1 more | 1991-10-01 |
| 4972370 | Three-dimensional memory element and memory device | Masamichi Morimoto, Yasuo Isono | 1990-11-20 |
| 4743800 | Array of light emitting elements for electrophotographic printer | Akitoshi Toda, Yasuo Isono | 1988-05-10 |
| 4701042 | Duplicating apparatus | Yasuo Isono | 1987-10-20 |
| 4604337 | Electrophotographic color copying paper and copying method making use of the same | Akitoshi Toda | 1986-08-05 |
| 4578332 | Method of removing electrostatic charge from electrophotographic photosensitive device | Akitoshi Toda | 1986-03-25 |
| 4565436 | Electrophotographic copying process | Takao Okada, Akitoshi Toda | 1986-01-21 |
| 4546722 | Developing apparatus for electrophotographic copying machines | Akitoshi Toda | 1985-10-15 |
| 4537846 | Multiconductive layer electrophotographic photosensitive device and method of manufacture thereof | Takao Okada, Akitoshi Toda | 1985-08-27 |
| 4537845 | Multiconductive layer electrophotographic photosensitive device and method of manufacture thereof | Takao Okada, Akitoshi Toda | 1985-08-27 |
| 4526848 | Electrophotographic process with a.c. charger producing greater positive charge | Takao Okada, Akitoshi Toda | 1985-07-02 |
| 4492745 | Photosensitive member for electrophotography with mirror finished support | Takao Okada, Akitoshi Toda | 1985-01-08 |
| 4444859 | Electrophotographic process and photosensitive member for use in said process | — | 1984-04-24 |
| 4278913 | Phosphor and low-velocity electron excited fluorescent display device utilizing the same | Akiyasu Kagami | 1981-07-14 |
| 4264696 | Electrophotographic photoreceptor | Hirokuni Kawashima, Kiyoshi Suzuki, Kunihiko Yoneshima | 1981-04-28 |