Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5256822 | Imine derivatives and process for production thereof | Ichiki Takemoto, Hideyuki Goto, Ritsu Okajima | 1993-10-26 |
| 5187549 | Dynamic random access memory device including stacked capacitors each having a lower electrode aligned with an upper electrode without tolerance and process of fabrication thereof | — | 1993-02-16 |
| 5175448 | Booster circuit | — | 1992-12-29 |
| RE34076 | Method for producing hydroxy-containing alkylated aromatic compounds | Akira Takeshita, Shinzaburo Masaki, Tooru Tokumaru, Akira Murakami | 1992-09-22 |
| 5148400 | Semiconductor memory circuit having an improved restoring control circuit | — | 1992-09-15 |
| 5138578 | Semiconductor memory circuit having an improved restoring scheme | — | 1992-08-11 |
| 5097313 | Semiconductor memory device | — | 1992-03-17 |
| 5049604 | Process for producing piperidine derivative and stabilized resin composition containing said derivative | Tamaki Ishii, Shinichi Yachigo, Tatsuo Kaneoya, Yukoh Takahashi, Yuzo Maegawa +2 more | 1991-09-17 |
| 4926381 | Semiconductor memory circuit with sensing arrangement free from malfunction | — | 1990-05-15 |
| 4912264 | Method for producing hydroxy-containing alkylated aromatic compounds | Akira Takeshita, Shinzaburo Masaki, Tooru Tokumaru, Akira Murakami | 1990-03-27 |
| 4746743 | Process for producing 2,2,4-trimethyl-1,2-dihydroquinoline | Masakatsu Yoshimura, Kikumitsu Inoue, Masahito Umehara, Hideo Nagasaki | 1988-05-24 |
| 4741636 | Dot drive circuit of wire dot type printer | Yoshinori Takahashi, Kohtaroh Yoshimura | 1988-05-03 |
| 4654689 | Structure of power supply wirings in semiconductor integrated circuit | — | 1987-03-31 |
| 4578410 | Piperidine derivatives, their production and stabilized polymer compositions containing same | Yukoh Takahashi, Masahisa Shionoya, Shinichi Yachigo, Tamaki Ishii | 1986-03-25 |
| 4578472 | 2,2,6,6-Tetramethylpiperidine and its production | Masakatsu Yoshimura, Shinichi Yachigo, Tamaki Ishii | 1986-03-25 |