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 126–150 of 191 patents

Patent #TitleCo-InventorsDate
6680230 Semiconductor device and method of fabricating the same Norihisa Arai, Fumitaka Arai, Seiichi Aritome, Akira Shimizu 2004-01-20
6667507 Flash memory having memory section and peripheral circuit section Kikuko Sugimae, Masayuki Ichige, Atsuhiro Sato, Hiroaki Hazama 2003-12-23
6639296 Semiconductor device and method of manufacturing the same Naoki Koido, Hirohisa Iizuka 2003-10-28
6611010 Semiconductor device Akira Goda, Kazuhiro Shimizu, Yuji Takeuchi, Seiichi Aritome 2003-08-26
6590255 Semiconductor memory device having memory cell section and peripheral circuit section and method of manufacturing the same Masayuki Ichige, Yuji Takeuchi, Kikuko Sugimae 2003-07-08
6549464 Nonvolatile semiconductor memory device Tomoharu Tanaka, Hiroshi Nakamura, Ken Takeuchi, Fumitaka Arai, Susumu Fujimura 2003-04-15
6534867 Semiconductor device, semiconductor element and method for producing same Eiji Kamiya, Toshitake Yaegashi, Kazuhiro Shimizu, Yuji Takeuchi, Norihisa Arai 2003-03-18
6493265 Nonvolatile semiconductor memory device Shinji Satoh, Fumitaka Arai 2002-12-10
6462373 Nonvolatile semiconductor memory device having tapered portion on side wall of charge accumulation layer Kazuhiro Shimizu, Naoki Koido, Seiichi Aritome, Hiroaki Tsunoda, Tadashi Iguchi +3 more 2002-10-08
6459612 Nonvolatile semiconductor memory device Shinji Satoh, Fumitaka Arai 2002-10-01
6434055 Nonvolatile semiconductor memory device Tomoharu Tanaka, Hiroshi Nakamura, Ken Takeuchi, Fumitaka Arai, Susumu Fujimura 2002-08-13
6396086 Semiconductor device and semiconductor integrated circuit having a conductive film on element region Yuji Takeuchi, Seiichi Aritome, Masashi Umemura, Yuuichiro Murahama, Hitoshi Araki +2 more 2002-05-28
6314026 Nonvolatile semiconductor device using local self boost technique Shinji Satoh, Fumitaka Arai 2001-11-06
6310374 Nonvolatile semiconductor memory device having extracting electrode Shinji Satoh, Seiichi Aritome 2001-10-30
6288942 Nonvolatile semiconductor storage device and its manufacturing method Hirohisa Iizuka, Shinji Satoh 2001-09-11
6274434 Method of making memory cell with shallow trench isolation Naoki Koido, Hirohisa Iizuka 2001-08-14
6252798 Nonvolatile semiconductor memory device capable of controlling mutual timing of write voltage pulse and transfer voltage pulse Shinji Satoh, Toru Tanzawa 2001-06-26
6222769 Nonvolatile semiconductor storage device having buried electrode within shallow trench Tohru Maruyama 2001-04-24
6208560 Nonvolatile semiconductor memory device Tomoharu Tanaka, Hiroshi Nakamura, Ken Takeuchi, Fumitaka Arai, Susumu Fujimura 2001-03-27
6188611 Non-volatile semiconductor memory device Tetsuo Endoh, Yoshiyuki Tanaka, Seiichi Aritome, Susumu Shuto, Tomoharu Tanaka +2 more 2001-02-13
6172911 Non-volatile semiconductor memory device with an improved verify voltage generator Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more 2001-01-09
6151249 NAND-type EEPROM having bit lines and source lines commonly coupled through enhancement and depletion transistors Masaki Momodomi 2000-11-21
6134140 Nonvolatile semiconductor memory device with soft-programming to adjust erased state of memory cells Tomoharu Tanaka, Hiroshi Nakamura, Ken Takeuchi, Fumitaka Arai, Susumu Fujimura 2000-10-17
6117729 Nonvolatile semiconductor storage device and its manufacturing method Hirohisa Iizuka, Shinji Satoh 2000-09-12
6034894 Nonvolatile semiconductor storage device having buried electrode within shallow trench Tohru Maruyama 2000-03-07