TI

Tohru Ishitani

HI Hitachi: 49 patents #305 of 28,497Top 2%
HH Hitachi High-Technologies: 17 patents #141 of 1,917Top 8%
HC Hitachi Ulsi Systems Co.: 4 patents #214 of 867Top 25%
Overall (All Time): #31,254 of 4,157,543Top 1%
68
Patents All Time

Issued Patents All Time

Showing 26–50 of 68 patents

Patent #TitleCo-InventorsDate
7005651 Liquid metal ion gun Hiroyasu Kaga, Yuichi Madokoro, Shigeru Izawa, Kaoru Umemura 2006-02-28
6970004 Apparatus for inspecting defects of devices and method of inspecting defects Hidemi Koike, Aritoshi Sugimoto, Isamu Sekihara, Kaoru Umemura, Satoshi Tomimatsu +1 more 2005-11-29
6960765 Probe driving method, and probe apparatus Satoshi Tomimatsu, Hidemi Koike, Junzo Azuma, Aritoshi Sugimoto, Yuichi Hamamura +2 more 2005-11-01
6839200 Combination perpendicular magnetic head having shield material formed at both ends of an upper pole of a write element Hisashi Takano, Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito +5 more 2005-01-04
6822245 Ion beam apparatus and sample processing method Hiroyuki Muto, Yuichi Madokoro 2004-11-23
6794663 Method and apparatus for specimen fabrication Hiroyasu Shichi, Hidemi Koike, Kaoru Umemura, Eiichi Seya, Mitsuo Tokuda +3 more 2004-09-21
6734687 Apparatus for detecting defect in device and method of detecting defect Hidemi Koike, Aritoshi Sugimoto, Isamu Sekihara, Kaoru Umemura, Satoshi Tomimatsu +1 more 2004-05-11
6665141 Magnetic head having track width defined by trench portions filled with magnetic shield material Hisashi Takano, Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito +5 more 2003-12-16
6664552 Method and apparatus for specimen fabrication Hiroyasu Shichi, Hidemi Koike, Kaoru Umemura, Eiichi Seya, Mitsuo Tokuda +3 more 2003-12-16
6627889 Apparatus and method for observing sample using electron beam Isao Ochiai, Hidemi Koike, Satoshi Tomimatsu, Muneyuki Fukuda, Mitsugu Sato 2003-09-30
6538844 Method of fabricating a magnetic head by focused ion beam etching Hisashi Takano, Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito +5 more 2003-03-25
6521890 Focused ion beam machining method and focused ion beam machining apparatus Tsuyoshi Ohnishi, Megumi Aizawa, Hiroji Iwata 2003-02-18
6310341 Projecting type charged particle microscope and projecting type substrate inspection system Hideo Todokoro, Yasutsugu Usami, Shunroku Taya, Hiroyuki Shinada, Taku Ninomiya +1 more 2001-10-30
6307707 Narrow track thin film head including magnetic poles machined by focused ion beam etching Hisashi Takano, Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito +5 more 2001-10-23
6278578 Narrow track thin film head having a focused ion beam etched air bearing surface Hisashi Takano, Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito +5 more 2001-08-21
6111723 Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer Hisashi Takano, Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito +5 more 2000-08-29
5852297 Focused ion beam apparatus and method for irradiating focused ion beam Tsuyoshi Ohnishi 1998-12-22
5850326 Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer Hisashi Takano, Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito +5 more 1998-12-15
5656811 Method for making specimen and apparatus thereof Fumikazu Itoh, Toshihiko Nakata, Akira Shimase, Hiroshi Yamaguchi, Takashi Kamimura 1997-08-12
5495110 Observation method and apparatus for removing an oxidation layer and forming an image from a sample Tsuyoshi Ohnishi 1996-02-27
5399865 Liquid metal ion source with high temperature cleaning apparatus for cleaning the emitter and reservoir Kaoru Umemura 1995-03-21
5270552 Method for separating specimen and method for analyzing the specimen separated by the specimen separating method Tsuyoshi Ohnishi 1993-12-14
5198672 Signal generator and method of generating signal voltages using the same Tsuyoshi Ohnishi, Moritoshi Yasunaga 1993-03-30
5148027 Method of microarea analysis with a focused cesium ion beam Kaoru Umemura, Hiroyasu Schichi 1992-09-15
5120925 Methods for device transplantation Tsuyoshi Ohnishi, Yoshimi Kawanami, Yuuichi Madokoro, Kaoru Umemura 1992-06-09