HK

Hisao Katto

HI Hitachi: 18 patents #2,067 of 28,497Top 8%
HE Hitachi Micro Computer Engineering: 2 patents #45 of 393Top 15%
HC Hitachi Device Eng. Co.: 1 patents #1 of 27Top 4%
Overall (All Time): #260,656 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
5610089 Method of fabrication of semiconductor integrated circuit device Hidetoshi Iwai, Kazumichi Mitsusada, Masamichi Ishihara, Tetsuro Matsumoto, Kazuyuki Miyazawa +1 more 1997-03-11
5580810 Method of making a semiconductor memory device June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa 1996-12-03
5534723 Semiconductor integrated circuit device having output and internal circuit MISFETS Hidetoshi Iwai, Kazumichi Mitsusada, Masamichi Ishihara, Tetsuro Matsumoto, Kazuyuki Miyazawa +1 more 1996-07-09
5436483 Semiconductor integrated circuit device having a first MISFET of an output buffer circuit and a second MISFET of an internal circuit Hidetoshi Iwai, Kazumichi Mitsusada, Masamichi Ishihara, Tetsuro Matsumoto, Kazuyuki Miyazawa +1 more 1995-07-25
5436484 Semiconductor integrated circuit device having input protective elements and internal circuits Hidetoshi Iwai, Kazumichi Mitsusada, Masamichi Ishihara, Tetsuro Matsumoto, Kazuyuki Miyazawa +1 more 1995-07-25
5416347 Semiconductor memory device with additional conductive line to prevent line breakage June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa 1995-05-16
5286666 Method of producing semiconductor memory device Jun Sugiura 1994-02-15
5276346 Semiconductor integrated circuit device having protective/output elements and internal circuits Hidetoshi Iwai, Kazumichi Mitsusada, Masamichi Ishihara, Tetsuro Matsumoto, Kazuyuki Miyazawa +1 more 1994-01-04
5116775 Method of producing semiconductor memory device with buried barrier layer Jun Sugiura 1992-05-26
4904615 Method of making a read only memory device Kousuke Okuyama, Ken Uchida, Kouichi Kusuyama, Satoshi Meguro, Kazuhiro Komori 1990-02-27
4830977 Method of making a semiconductor memory device June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa 1989-05-16
4818716 Semiconductor device and manufacturing method thereof Kousuke Okuyama, Ken Uchida, Kouichi Kusuyama, Satoshi Meguro, Kazuhiro Komori 1989-04-04
4731642 Semiconductor memory device with means to prevent word line breakage June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa 1988-03-15
4717684 Semiconductor integrated circuit device Kousuke Okuyama 1988-01-05
4652897 Semiconductor memory device Kousuke Okuyama, Kazuhiro Komori 1987-03-24
4377819 Semiconductor device Yoshio Sakai, Toshiaki Masuhara, Osamu Minato, Toshio Sasaki, Norikazu Hashimoto +2 more 1983-03-22
4317055 High-voltage circuit for insulated gate field-effect transistor Isao Yoshida, Minoru Nagata, Shikayuki Ochi 1982-02-23
4295265 Method for producing a nonvolatile semiconductor memory Masatada Horiuchi 1981-10-20