YK

Yasuhiro Kasama

HI Hitachi: 24 patents #1,340 of 28,497Top 5%
HE Hitachi Vlsi Engineering: 11 patents #38 of 666Top 6%
HC Hitachi Ulsi Systems Co.: 3 patents #305 of 867Top 40%
HC Hitachi Device Engineering Co.: 1 patents #292 of 514Top 60%
Overall (All Time): #175,443 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7499340 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2009-03-03
7345929 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2008-03-18
7203101 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2007-04-10
7016236 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2006-03-21
6898130 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2005-05-24
6657901 Semiconductor device formed in a rectangle region on a semiconductor substrate including a voltage generating circuit Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2003-12-02
6515913 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2003-02-04
RE37539 Sealed stacked arrangement of semiconductor devices Satoshi Oguchi, Masamichi Ishihara, Kazuya Ito, Gen Murakami, Ichiro Anjoh +7 more 2002-02-05
6335884 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2002-01-01
6212089 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2001-04-03
6160744 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2000-12-12
6049500 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2000-04-11
5983358 Semiconductor memory having redundancy circuit Masashi Horiguchi, Shinichi Miyatake, Tathunori Mushya, Yoichi Matsuno, Yasushi Kawase +1 more 1999-11-09
5854508 Semiconductor memory device having zigzag bonding pad arrangement Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 1998-12-29
5701031 Sealed stacked arrangement of semiconductor devices Satoshi Oguchi, Masamichi Ishihara, Kazuya Ito, Gen Murakami, Ichiro Anjoh +7 more 1997-12-23
5602771 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 1997-02-11
5579256 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 1996-11-26
5332922 Multi-chip semiconductor package Satoshi Oguchi, Masamichi Ishihara, Kazuya Ito, Gen Murakami, Ichiro Anjoh +7 more 1994-07-26
5268868 Output buffer circuits for reducing ground bounce noise Kazuhiko Kajigaya, Hiroaki Kotani, Kazuyoshi Oshima, Shinji Udo 1993-12-07
5208782 Semiconductor integrated circuit device having a plurality of memory blocks and a lead on chip (LOC) arrangement Toshiyuki Sakuta, Masamichi Ishihara, Kazuyuki Miyazawa, Masanori Tazunoki, Hidetoshi Iwai +10 more 1993-05-04
5043947 Semiconductor memory device Kazuyoshi Oshima, Takashi Yamazaki, Tetsu Udagawa, Hiroaki Kotani 1991-08-27
5018101 Semiconductor memory Kazuhiko Kajigaya, Hiroaki Kotani, Kazuyoshi Oshima, Shinji Udo 1991-05-21
4956811 Semiconductor memory Kazuhiko Kajigaya, Hiroaki Kotani, Kazuyoshi Oshima, Shinji Udo 1990-09-11
4941129 Semiconductor memory device Kazuyoshi Oshima, Takashi Yamazaki, Tetsu Udagawa, Hiroaki Kotani 1990-07-10