YK

Yasuhiro Koizumi

HI Hitachi: 11 patents #3,813 of 28,497Top 15%
Dai Nippon Printing Co.: 3 patents #744 of 2,222Top 35%
RT Renesas Technology: 2 patents #1,374 of 3,337Top 45%
SI Shinmaywa Industries: 2 patents #16 of 119Top 15%
CC Citizen Watch Co.: 1 patents #668 of 1,225Top 55%
Overall (All Time): #301,707 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
7252910 Fabrication method of semiconductor integrated circuit device and mask fabrication method Norio Hasegawa, Katsuya Hayano, Shinji Kubo, Yasushi Kawai 2007-08-07
6879393 Defect inspection apparatus for phase shift mask Shiaki Murai, Shigeru Noguchi, Katsuhide Tsuchiya 2005-04-12
6863018 Ion plating device and ion plating method Kouichi Nose, Isao Tokomoto 2005-03-08
6841399 Method of manufacturing mask and method of manufacturing semiconductor integrated circuit device Norio Hasegawa, Katsuya Hayano, Shinji Kubo, Hironobu Takaya, Morihisa Hoga 2005-01-11
6831413 Plasma display panel Hiroshi Kajiyama, Akira Katou, Kenichi Onisawa, Tetsuro Minemura, Kazuo Uetani +4 more 2004-12-14
6816134 Plasma display panel Hiroshi Kajiyama, Akira Katou, Kenichi Onisawa, Tetsuro Minemura, Kazuo Uetani +4 more 2004-11-09
6579428 Arc evaporator, method for driving arc evaporator, and ion plating apparatus Shirou Takigawa, Kouichi Nose, Takanobu Hori, Yukio Miya 2003-06-17
6476387 Method and apparatus for observing or processing and analyzing using a charged beam Norimasa Nishimura, Akira Shimase, Junzou Azuma, Yuichi Hamamura, Michinobu Mizumura +1 more 2002-11-05
6303932 Method and its apparatus for detecting a secondary electron beam image and a method and its apparatus for processing by using focused charged particle beam Yuichi Hamamura, Akira Shimase, Junzou Azuma, Michinobu Mizumura, Norimasa Nishimura +1 more 2001-10-16
5786112 Photomask manufacturing process and semiconductor integrated circuit device manufacturing process using the photomask Yoshihiko Okamoto 1998-07-28
5447614 Method of processing a sample using a charged beam and reactive gases and system employing the same Yuuichi Hamamura, Satoshi Haraichi, Akira Shimase, Junzou Azuma, Fumikazu Itoh +2 more 1995-09-05
5439763 Optical mask and method of correcting the same Akira Shimase, Junzou Azuma, Satoshi Haraichi, Fumikazu Itoh 1995-08-08
5358806 Phase shift mask, method of correcting the same and apparatus for carrying out the method Satoshi Haraichi, Fumikazu Itoh, Akira Shimase, Hiroshi Yamaguchi, Junzou Azuma 1994-10-25
5342448 Apparatus for processing a sample using a charged beam and reactive gases Yuuichi Hamamura, Satoshi Haraichi, Akira Shimase, Junzou Azuma, Fumikazu Itoh +2 more 1994-08-30
4704348 Exposure of uniform fine pattern on photoresist Soichi Torisawa, Walter Gartner, Gudrun Dietz, Wolfgang Retschke 1987-11-03
4609566 Method and apparatus for repairing defects on a photo-mask pattern Mikio Hongo, Katsurou Mizukoshi, Tateoki Miyauchi, Takao Kawanabe 1986-09-02