RS

Riichiro Shirota

KT Kabushiki Kaisha Toshiba: 155 patents #33 of 21,451Top 1%
UM United Microelectronics: 11 patents #537 of 4,560Top 15%
UN Unknown: 6 patents #2,010 of 83,584Top 3%
PT Powerchip Technology: 4 patents #10 of 138Top 8%
UP Unisantis Electronics Singapore Pte.: 4 patents #14 of 31Top 50%
Toshiba Memory: 2 patents #853 of 1,971Top 45%
PE Phison Electronics: 2 patents #111 of 344Top 35%
Kioxia: 1 patents #1,054 of 1,813Top 60%
Overall (All Time): #3,710 of 4,157,543Top 1%
191
Patents All Time

Issued Patents All Time

Showing 101–125 of 191 patents

Patent #TitleCo-InventorsDate
7031195 Nonvolatile semiconductor memory having a control gate driver transistor whose gate insulator thickness is greater than that of a select gate driver transistor Atsuhiro Sato, Kikuko Sugimae, Koji Sakui 2006-04-18
7027329 Nonvolatile semiconductor memory and programming method for the same Makoto Sakuma, Fumitaka Arai, Yasuhiko Matsunaga 2006-04-11
6995425 Semiconductor memory device having memory cell section and peripheral circuit section and method of manufacturing the same Masayuki Ichige, Yuji Takeuchi, Kikuko Sugimae 2006-02-07
6977409 Flash memory having memory section and peripheral circuit section Kikuko Sugimae, Masayuki Ichige, Atsuhiro Sato, Hiroaki Hazama 2005-12-20
6967892 Non-volatile semiconductor memory device and memory system using the same Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more 2005-11-22
6940752 Nonvolatile semiconductor memory device Tomoharu Tanaka, Hiroshi Nakamura, Ken Takeuchi, Fumitaka Arai, Susumu Fujimura 2005-09-06
6927449 Nonvolatile semiconductor memory device having element isolating region of trench type Michiharu Matsui, Seiichi Mori, Yuji Takeuchi, Takeshi Kamigaichi 2005-08-09
6927998 Nonvolatile semiconductor memory device capable of reducing threshold voltage variations of memory cells due to capacitance coupling Yuji Takeuchi 2005-08-09
6925008 Non-volatile semiconductor memory device with a memory unit including not more than two memory cell transistors Masayuki Ichige, Kikuko Sugimae 2005-08-02
6921960 Capacitor element with an opening portion formed in a peripheral circuit Masayuki Ichige, Kikuko Sugimae, Atsuhiro Sato, Yuji Takeuchi 2005-07-26
6894341 Semiconductor device and manufacturing method Kikuko Sugimae, Hiroyuki Kutsukake, Masayuki Ichige, Michiharu Matsui, Yuji Takeuchi 2005-05-17
6878985 Nonvolatile semiconductor memory device having a memory cell that includes a floating gate electrode and control gate electrode Fumitaka Arai, Toshitake Yaegashi, Akira Shimizu, Yasuhiko Matsunaga, Masayuki Ichige +1 more 2005-04-12
6868010 Semiconductor memory device having row decoder in which high-voltage-applied portion is located adjacent to low-voltage-applied portion Akira Shimizu, Fumitaka Arai 2005-03-15
6859394 NAND type non-volatile semiconductor memory device Yasuhiko Matsunaga, Toshitake Yaegashi, Fumitaka Arai 2005-02-22
6853029 Non-volatile semiconductor memory device with multi-layer gate structure Masayuki Ichige, Yuji Takeuchi, Michiharu Matsui, Atsuhiro Sato, Kikuko Sugimae 2005-02-08
6845042 Nonvolatile semiconductor memory, fabrication method for the same, semiconductor integrated circuits and systems Masayuki Ichige, Koji Hashimoto, Tatsuaki Kuji, Seiichi Mori, Yuji Takeuchi +1 more 2005-01-18
6835978 Nonvolatile semiconductor memory device having element isolating region of trench type Michiharu Matsui, Seiichi Mori, Yuji Takeuchi, Takeshi Kamigaichi 2004-12-28
6828624 Nonvolatile semiconductor memory device covered with insulating film which is hard for an oxidizing agent to pass therethrough Akira Goda, Kazuhiro Shimizu, Hiroaki Hazama, Hirohisa Iizuka, Seiichi Aritome +1 more 2004-12-07
6828648 Semiconductor device and method of manufacturing the same Naoki Koido, Hirohisa Iizuka 2004-12-07
6828627 Semiconductor device Akira Goda, Kazuhiro Shimizu, Norihisa Arai, Naoki Koido, Seiichi Aritome +3 more 2004-12-07
6806525 Semiconductor device and operation method thereof Yuji Takeuchi 2004-10-19
6798698 Nonvolatile semiconductor memory device Tomoharu Tanaka, Hiroshi Nakamura, Ken Takeuchi, Fumitaka Arai, Susumu Fujimura 2004-09-28
6781895 Non-volatile semiconductor memory device and memory system using the same Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more 2004-08-24
6747311 Nonvolatile semiconductor memory device and method for manufacturing the same Akira Goda, Kazuhiro Shimizu, Hiroaki Hazama, Hirohisa Iizuka, Seiichi Aritome +1 more 2004-06-08
6703669 Semiconductor device having serially connected memory cell transistors provided between two current terminals Akira Goda, Kazuhiro Shimizu, Norihisa Arai, Naoki Koido, Seiichi Aritome +3 more 2004-03-09