RH

Ryoichi Hori

HI Hitachi: 74 patents #91 of 28,497Top 1%
HE Hitachi Vlsi Engineering: 14 patents #20 of 666Top 4%
HE Hitachi Micro Computer Engineering: 5 patents #10 of 393Top 3%
CK Calsonic Kansei: 4 patents #77 of 675Top 15%
RT Renesas Technology: 4 patents #758 of 3,337Top 25%
HC Hitachi Ulsi Systems Co.: 3 patents #305 of 867Top 40%
Overall (All Time): #20,203 of 4,157,543Top 1%
85
Patents All Time

Issued Patents All Time

Showing 26–50 of 85 patents

Patent #TitleCo-InventorsDate
6107836 Semiconductor integrated circuit device having power reduction mechanism Takayuki Kawahara, Masashi Horiguchi, Ryoichi Kurihara, Kiyoo Itoh, Masakazu Aoki +2 more 2000-08-22
6049500 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2000-04-11
5880604 Semiconductor integrated circuit device having power reduction mechanism Takayuki Kawahara, Masashi Horiguchi, Ryoichi Kurihara, Kiyoo Itoh, Masakazu Aoki +2 more 1999-03-09
5854508 Semiconductor memory device having zigzag bonding pad arrangement Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 1998-12-29
5822267 Semiconductor device incorporating internal power supply for compensating for deviation in operating condition and fabrication process conditions Takao Watanabe, Goro Kitsukawa, Yoshiki Kawajiri, Takayuki Kawahara, Kiyoo Itoh 1998-10-13
5805513 Semiconductor memory device with improved substrate arrangement to permit forming a plurality of different types of random access memory, and a testing method therefor Yasushi Takahashi, Hidetoshi Iwai, Satoshi Oguchi, Hisashi Nakamura, Hiroyuki Uchiyama +10 more 1998-09-08
5712859 Semiconductor integrated circuit Kiyoo Itoh, Hitoshi Tanaka 1998-01-27
5644548 Dynamic random access memory having bipolar and C-MOS transistor Goro Kitsukawa, Takao Watanabe, Noriyuki Honma, Kunihiko Yamaguchi, Kiyoo Ito +2 more 1997-07-01
5614847 Semiconductor integrated circuit device having power reduction mechanism Takayuki Kawahara, Masashi Horiguchi, Ryoichi Kurihara, Kiyoo Itoh, Masakazu Aoki +2 more 1997-03-25
5602771 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 1997-02-11
5587952 Dynamic random access memory including read preamplifiers activated before rewrite amplifiers Goro Kitsukawa, Takao Watanabe, Noriyuki Honma, Kunihiko Yamaguchi, Kiyoo Itoh 1996-12-24
5579256 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 1996-11-26
5566185 Semiconductor integrated circuit Kiyoo Itoh, Hitoshi Tanaka 1996-10-15
RE35313 Semiconductor integrated circuit with voltage limiter having different output ranges from normal operation and performing of aging tests Kiyoo Itoh, Hitoshi Tanaka 1996-08-13
5539692 Semiconductor memory and method of setting type Kazuhiko Kajigaya, Masashi Horiguchi, Yoshinobu Nakagome, Tetsuro Matsumoto, Masaharu Kubo 1996-07-23
5528548 Voltage converter of semiconductor device Masashi Horiguchi, Kiyoo Itoh, Yoshinobu Nakagome, Masakazu Aoki, Hitoshi Tanaka 1996-06-18
5497023 Semiconductor memory device having separately biased wells for isolation Shinji Nakazato, Hideaki Uchida, Yoshikasu Saito, Masahiro Yamamura, Yutaka Kobayashi +7 more 1996-03-05
5493572 Semiconductor integrated circuit with voltage limiter having different output ranges for normal operation and performing of aging tests Kiyoo Itoh, Hitoshi Tanaka 1996-02-20
5426613 Semiconductor memory device with improved substrate arrangement to permit forming a plurality of different types of random access memory, and a testing method therefor Yasushi Takahashi, Hidetoshi Iwai, Satoshi Oguchi, Hisashi Nakamura, Hiroyuki Uchiyama +10 more 1995-06-20
5402375 Voltage converter arrangement for a semiconductor memory Masashi Horiguchi, Kiyoo Itoh, Yoshinobu Nakagome, Masakazu Aoki, Hitoshi Tanaka 1995-03-28
5396116 Semiconductor device incorporating internal power supply for compensating for deviation in operating condition and fabrication process conditions Takao Watanabe, Goro Kitsukawa, Yoshiki Kawajiri, Takayuki Kawahara, Kiyoo Itoh 1995-03-07
5386135 Semiconductor CMOS memory device with separately biased wells Shinji Nakazato, Hideaki Uchida, Yoshikazu Saito, Masahiro Yamamura, Yutaka Kobayashi +7 more 1995-01-31
5377156 Semiconductor device incorporating main and stand-by boosted internal power supply for compensating for deviation on operating condition and fabrication process conditions Takao Watanabe, Goro Kitsukawa, Yoshiki Kawajiri, Takayuki Kawahara, Kiyoo Itoh 1994-12-27
5324982 Semiconductor memory device having bipolar transistor and structure to avoid soft error Shinji Nakazato, Hideaki Uchida, Yoshikazu Saito, Masahiro Yamamura, Yutaka Kobayashi +7 more 1994-06-28
5272393 Voltage converter of semiconductor device Masashi Horiguchi, Kiyoo Itoh, Yoshinobu Nakagome, Masakazu Aoki, Hitoshi Tanaka 1993-12-21