YS

Yutaka Sugita

HI Hitachi: 60 patents #166 of 28,497Top 1%
CL Central Glass Company, Limited: 1 patents #505 of 968Top 55%
HC Hitachi Cable: 1 patents #530 of 1,086Top 50%
HM Hitachi Maxell: 1 patents #659 of 1,211Top 55%
HE Hitachi Micro Computer Engineering: 1 patents #131 of 393Top 35%
Overall (All Time): #37,025 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 1–25 of 62 patents

Patent #TitleCo-InventorsDate
9758694 Curable resin composition, cured product thereof, and semiconductor device using the same Masafumi Oda, Junya Nakatsuji, Tsuyoshi Ogawa 2017-09-12
5671107 Large capacity magnetic disc apparatus with a particular relationship between pole thickness, saturated flux density, and recording wavelength Katsuya Mitsuoka, Hiroshi Fukui, Makoto Aihara, Masanori Tanabe, Moriaki Fuyama +8 more 1997-09-23
5639547 Magnetic heads and magnetic recording reproducing devices using magnetic laminations Katsuya Mitsuoka, Hideo Fujiwara 1997-06-17
5583840 ROM type optical recording medium with a high reflectivity and an optical head operable on ROM, write-one and rewritable disk Hiroyuki Minemura, Yoshio Sato, Nobuyoshi Tsuboi, Hisashi Andoh, Masaichi Nagai +4 more 1996-12-10
5541789 Magnetic recording apparatus with magnetic head on slider having applied load larger than buoyant force acting on slider so that gap between magnetic head and magnetic disk is smaller than total thickness of protective layer and lubricating layer on disk Hirotsugu Fukuoka, Hiroshi Fukui, Mitsuo Suda, Kanji Kawakami 1996-07-30
5475656 Optical disk memory and information processing apparatus Yoshio Sato, Nobuyoshi Tsuboi, Hiroyuki Minemura, Hisashi Andoh, Masaichi Nagai +4 more 1995-12-12
5371730 Optical memory and information processing apparatus Yoshihito Maeda, Isao Ikuta, Masaichi Nagai, Yoshimi Katou, Hisashi Andoh +4 more 1994-12-06
5350886 Mounting substrate Kunio Miyazaki, Akio Mukoh, Tadahiko Miyoshi, Osamu Miura, Akio Takahashi +5 more 1994-09-27
5317556 Information processing apparatus and optical head incorporated therein Nobuyoshi Tsuboi, Yoshio Sato, Hiroyuki Minemura, Hisashi Andoh, Masaichi Nagai +4 more 1994-05-31
5316617 Thin film magnetic head and method of manufacturing the same Takashi Kawabe, Moriaki Fuyama, Shinji Narishige, Akira Onuma, Tetsuya Okai +1 more 1994-05-31
5307214 Magnetic recording apparatus Kanji Kawakami, Yoshiakira Karakama, Masayuki Takagi, Takayoshi Ohtsu, Hisayasu Honma +2 more 1994-04-26
5296979 Magnetic disc apparatus with thin film head suitable for high-density recording Takashi Kawabe, Moriaki Fuyama, Shinji Narishige, Masatoshi Tsuchiya, Eiji Ashida +9 more 1994-03-22
5274612 Information processor and disk memory used in the same Yoshio Sato, Nobuyoshi Tsuboi, Hiroyuki Minemura, Hisashi Andoh, Masaichi Nagai +4 more 1993-12-28
5245493 Magnetic information storage apparatus including magnetic head and method for making magnetic head Takashi Kawabe, Moriaki Fuyama, Shinji Narishige, Eizi Ashida, Makoto Morijiri +8 more 1993-09-14
5109311 Magnetic disk device and method of recording/retrieving information Masanobu Hanazono, Shinji Narishige, Hiroshi Fukui, Hirotsugu Fukuoka, Hajime Aoi +4 more 1992-04-28
5051856 Thin film magnetic head with mixed crystal structures Shinji Narishige, Katsuya Mitsuoka, Takao Imagawa, Kouichi Nishioka, Akira Kumagai +7 more 1991-09-24
4923765 Magneto-optical recording medium Shinji Takayama, Toshio Niihara, Katsuhiro Kaneko 1990-05-08
4894098 Process for preparing magnetic layer and magnetic head prepared using the same Shigekazu Otomo, Noriyuki Kumasaka, Ryo Imura, Ryo Suzuki 1990-01-16
4889757 Optical recording disk Shinkichi Horigome, Toshio Niihara, Norio Ohta, Yoshinori Miyamura, Ryoichi Sudo +2 more 1989-12-26
4880694 Magneto-optical recording material Shinji Takayama, Toshio Niihara, Katsuhiro Kaneko 1989-11-14
4838962 Magneto-optical recording medium Shinji Takayama, Fumiyoshi Kirino 1989-06-13
4788672 Method and apparatus for controlling renewal of data in optical disc memory Takashi Toyooka, Norio Ohta, Kazuo Shigematsu, Atsushi Saito 1988-11-29
4772976 Process for preparing magnetic layer and magnetic head prepared using the same Shigekazu Otomo, Noriyuki Kumasaka, Ryo Imura, Ryo Suzuki 1988-09-20
4707755 Optical read-out magnetic head Norio Ohta, Shigenori Okamine, Yosuke Seo, Takashi Tamura 1987-11-17
4701385 Ion-implanted magnetic bubble device and a method of manufacturing the same Ryo Imura, Tadashi Ikeda 1987-10-20