Issued Patents All Time
Showing 226–250 of 292 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961015 | MOS current switching circuit | Yasuhiro Shin | 1990-10-02 |
| 4958317 | Nonvolatile semiconductor memory device and a writing method using electron tunneling | Yasushi Terada, Takeshi Nakayama | 1990-09-18 |
| 4953129 | Nonvolatile semiconductor memory device capable of reliably writing data and a data writing method therefor | Yasushi Terada, Takeshi Nakayama | 1990-08-28 |
| 4952735 | Novel perfluoropolyether and process for producing the same | Masashi Fukazawa, Shinji Ishikawa | 1990-08-28 |
| 4938570 | Method and system for data display and input via display screen | Osamu Majima, Ikuo Misao, Hideshi Tamaru | 1990-07-03 |
| 4933906 | Non-volatile semiconductor memory device | Yasushi Terada, Takeshi Nakayama | 1990-06-12 |
| 4918965 | Multihigh rolling mill | Toshiyuki Kajiwara, Teruo Sekiya, Tomoaki Kimura | 1990-04-24 |
| 4912302 | Furnace for sintering ceramics, carbon heater used therefor and process for sintering ceramics | Shigeru Hanzawa | 1990-03-27 |
| 4912621 | Current-balance switching regulator | Hiroo Tanaka, Fumiaki Ihara, Katsuyuki Asahi, Osamu Kinoshita | 1990-03-27 |
| 4901430 | Method of mounting a magnetic head | Ichiro Noguchi, Toru Sawada, Masao Okita, Yasunari Takayama, Kazuo Kozumi | 1990-02-20 |
| 4903236 | Nonvolatile semiconductor memory device and a writing method therefor | Takeshi Nakayama, Yasushi Terada | 1990-02-20 |
| 4899689 | Developing device with a developing roller and using a single-component developer and method for producing such developing roller | Fuchio Takeda, Koji Sakamoto | 1990-02-13 |
| 4859299 | Novel perfluoropolyether and process for producing the same | Masashi Fukazawa, Shinji Ishikawa | 1989-08-22 |
| 4858194 | Nonvolatile semiconductor memory device using source of a single supply voltage | Yasushi Terada, Takeshi Nakayama | 1989-08-15 |
| 4831479 | Pivot support structure for magnetic head assembly | Ichiro Noguchi, Toru Sawada, Masao Okita, Yasunari Takayama, Kazuo Kozumi | 1989-05-16 |
| 4816428 | Process for producing high strength .beta.sialon-silicon carbide composite | Kazushi Kishi, Seiki Umebayashi, Eiji Tani | 1989-03-28 |
| 4813018 | Nonvolatile semiconductor memory device | Yasushi Terada, Takeshi Nakayama | 1989-03-14 |
| 4812667 | Past record correcting/reading apparatus | Mitsuo Togashi, Satoshi Fukuda | 1989-03-14 |
| 4811294 | Data integrity verifying circuit for electrically erasable and programmable read only memory (EEPROM) | Takeshi Nakayama, Yasushi Terada | 1989-03-07 |
| 4805151 | Nonvolatile semiconductor memory device | Yasushi Terada, Takeshi Nakayama, Kenji Noguchi | 1989-02-14 |
| 4796118 | Welded leaf spring mounting for magnetic head assembly of disk drive apparatus | Masao Ohkita, Kunihiko Gunji, Tadami Sugawara, Osamu Shigenai, Takamichi Fuke | 1989-01-03 |
| 4788168 | Method for producing carbon-ceramic composite material | Ichitaro Ogawa, Hisayoshi Yoshida | 1988-11-29 |
| 4770021 | Working roll shift type rolling mill | Tokuji Sugiyama, Hiroshi Ando | 1988-09-13 |
| 4764830 | Magnetic head assembly in floppy disk drive | Masao Kumagai, Atsushi Takahashi, Kenji Abe | 1988-08-16 |
| 4764917 | Auto loading disk player | Masanori Sugihara, Akihiko Okamoto, Atsushi Kurosawa, Hideki Okii | 1988-08-16 |