Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162191 | Thermal processing method for silicon wafer | Susumu Maeda, Haruo Sudo, Hideyuki Okamura, Koji Araki, Koji Sueoka +1 more | 2021-11-02 |
| 10648101 | Silicon wafer | Susumu Maeda, Haruo Sudo, Hideyuki Okamura, Koji Araki, Koji Sueoka +1 more | 2020-05-12 |
| 8936679 | Single crystal pulling-up apparatus of pulling-up silicon single crystal and single crystal pulling-up method of pulling-up silicon single crystal | Hiromichi Isogai, Yoshiaki Abe, Takashi Ishikawa, Shingo Narimatsu, Jun Nakao +2 more | 2015-01-20 |
| 7120053 | Semiconductor intergrated circuit device with a main cell array and a fuse cell array whose word lines and bit lines are extended in the same directions | Shigeru Atsumi, Masao Kuriyama, Akira Umezawa, Tadayuki Taura, Hidetoshi Saito | 2006-10-10 |
| 6856543 | Semiconductor integrated circuit device with erasable and programmable fuse memory | Shigeru Atsumi, Masao Kuriyama, Akira Umezawa, Tadayuki Taura, Hidetoshi Saito | 2005-02-15 |
| 6700817 | Semiconductor integrated circuit device with operation/function setting information memory | Shigeru Atsumi, Masao Kuriyama, Akira Umezawa, Tadayuki Taura, Hidetoshi Saito | 2004-03-02 |
| 6601199 | Memory-embedded LSI | Ryo Fukuda, Toshimasa Namekawa, Shinji Miyano | 2003-07-29 |
| 6560144 | Nonvolatile semiconductor memory device | Shigeru Atsumi | 2003-05-06 |
| 6498761 | Power supply circuit and semiconductor memory device having the same | Shigeru Atsumi | 2002-12-24 |
| 6480426 | Semiconductor integrated circuit device | Shigeru Atsumi, Masao Kuriyama, Akira Umezawa, Tadayuki Taura, Hidetoshi Saito | 2002-11-12 |
| 6433619 | Pump circuit boosting a supply voltage | Hironobu Akita, Masaharu Wada, Kenji Tsuchida | 2002-08-13 |
| 6385087 | Nonvolatile semiconductor memory device | Shigeru Atsumi | 2002-05-07 |
| 6356499 | Power supply circuit and semiconductor memory device having the same | Shigeru Atsumi | 2002-03-12 |
| 6326834 | Pump circuit boosting a supply voltage | Hironobu Akita, Masaharu Wada, Kenji Tsuchida | 2001-12-04 |
| 6323630 | Reference voltage generation circuit and reference current generation circuit | — | 2001-11-27 |
| 6320428 | Semiconductor integrated circuit device | Shigeru Atsumi, Masao Kuriyama, Akira Umezawa, Tadayuki Taura, Hidetoshi Saito | 2001-11-20 |
| 6252801 | Nonvolatile semiconductor memory device | Shigeru Atsumi | 2001-06-26 |
| 6226224 | Semiconductor integrated circuit device and storage device | Hitoshi Shiga, Shigeru Atsumi, Akira Umezawa | 2001-05-01 |
| 6222773 | Nonvolatile semiconductor memory in which the number of programming or erasing bits increases with the progress of programming or erasing | Tooru Tanzawa, Nobuaki Otsuka, Shigeru Atsumi, Masao Kuriyama, Seiichi Mori +1 more | 2001-04-24 |
| 6215332 | Semiconductor integrated circuit having power supply voltage detecting function | Shigeru Atsumi | 2001-04-10 |
| 6195307 | Booster circuit and semiconductor memory device having the same | Akira Umezawa, Shigeru Atsumi | 2001-02-27 |
| 6160738 | Nonvolatile semiconductor memory system | Shigeru Atsumi, Masao Kuriyama | 2000-12-12 |
| 6160391 | Reference voltage generation circuit and reference current generation circuit | — | 2000-12-12 |
| 6144582 | Nonvolatile semiconductor memory device | Shigeru Atsumi | 2000-11-07 |
| 6128242 | Power supply circuit and semiconductor memory device having the same | Shigeru Atsumi | 2000-10-03 |