Issued Patents All Time
Showing 51–75 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4895959 | Purification of N-methyl-2-pyrrolidone | Hiroshi Inoue, Kensuke Ogawara | 1990-01-23 |
| 4868275 | Preparation of poly (arylene sulfide) from dihalo aromatic hydroxyl compound | Hiroshi Inoue, Satoshi Tomagou, Noriaki Emura | 1989-09-19 |
| 4845190 | Process for preparing polyarylene sulfides with recovery of carboxylic acid | Hiroshi Inoue, Noriaki Emura | 1989-07-04 |
| 4840986 | Process for producing a polyarylene sulfide | Hiroshi Inoue, Satoshi Tomagou, Noriaki Emura | 1989-06-20 |
| 4820801 | Polyphenylene sulfide containing covalently bonded chlorine in a reduced amount | Hiroshi Inoue, Masaaki Otsuru, Noriaki Emura | 1989-04-11 |
| D299336 | Hand microphone for transcriber | Akira Osanai, Yasuo Hattori | 1989-01-10 |
| 4794163 | Process for producing a polyarylene sulfide with alkali metal salt of pyridine carboxylic acid catalyst | Hiroshi Inoue, Noriaki Emura | 1988-12-27 |
| 4794161 | Process for producing a polyarylene sulfide with controlled ratio of alkali metal sulfide to water | Hiroshi Inoue, Noriaki Emura | 1988-12-27 |
| 4789729 | Process for recovering a polyarylene sulfide | Nobuo Nagira, Hiroshi Inoue | 1988-12-06 |
| D297933 | Audio cassette recorder and transcriber | Akira Osanai, Yasuo Hattori | 1988-10-04 |
| 4764844 | Electronic component with terminal caps | Kouichi Nitta | 1988-08-16 |
| 4746895 | Ceramic electronic components | Koichi Nitta | 1988-05-24 |
| 4620246 | Cassette ejection mechanism of a cassette tape recorder | — | 1986-10-28 |
| 4577004 | Process for producing a chloroprene polymer | Noriaki Emura, Takashi Ariyoshi | 1986-03-18 |
| 4539609 | Cassette tape recorder | Akira Osanai | 1985-09-03 |
| 4530106 | Counter device for use in tape recorder | — | 1985-07-16 |
| 4510540 | Cassette ejection mechanism for a cassette tape recorder | — | 1985-04-09 |
| 4467380 | Cassette loading/unloading apparatus for cassette tape recorder | — | 1984-08-21 |
| 4466030 | Cassette loading/unloading apparatus for cassette tape recorder | — | 1984-08-14 |
| 4463397 | Cassette tape recorder | Kazuyasu Motoyama | 1984-07-31 |
| 4447838 | Cassette loading/unloading apparatus for cassette tape recorder | — | 1984-05-08 |
| 4417705 | Tape cassette | Sinichi Saitou | 1983-11-29 |
| 4402024 | Cassette holder | — | 1983-08-30 |
| 4372504 | Magnetic record tape protective device for a tape cassette | Tsutomu Shibata, Kenji Kimura, Ken Satoh, Sinichi Saitou, Seizo Watanabe +1 more | 1983-02-08 |
| 4363042 | Method and apparatus for automatically tracking a magnetic tape | Kenji Kimura, Sinichi Saitou, Toyoo Nishiyama, Misao Shimoda, Seizo Watanabe +2 more | 1982-12-07 |