YH

Yoshihiro Hamakawa

HI Hitachi: 14 patents #2,889 of 28,497Top 15%
KK Kanegafuchi Kagaku Kogyo: 11 patents #28 of 691Top 5%
UN Unknown: 5 patents #3,065 of 83,584Top 4%
MC Minolta Co.: 2 patents #718 of 1,416Top 55%
YC Yamatake-Honeywell Co.: 1 patents #68 of 169Top 45%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Canon: 1 patents #14,899 of 19,416Top 80%
NS Nippon Soken: 1 patents #783 of 1,540Top 55%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
OC Osaka Transformer Co.: 1 patents #4 of 15Top 30%
Overall (All Time): #77,050 of 4,157,543Top 2%
41
Patents All Time

Issued Patents All Time

Showing 1–25 of 41 patents

Patent #TitleCo-InventorsDate
6706959 Photovoltaic apparatus and mass-producing apparatus for mass-producing spherical semiconductor particles Mikio Murozono, Hideyuki Takakura 2004-03-16
6515837 Magnetoresistive head and magnetic storage apparatus Shiroyasu Odai, Katsumi Hoshino 2003-02-04
6327123 Magnetic head employing magnetoresistive sensor and magnetic storage and retrieval system Yoshiaki Kawato, Hiroshi Fukui, Kenichi Meguro 2001-12-04
6087027 Magnetic layered material, and magnetic sensor and magnetic storage/read system based thereon Hiroyuki Hoshiya, Susumu Soeya, Shigeru Tadokoro 2000-07-11
5976906 Method for manufacturing a solid state image sensing device Kenji Takada, Kouichi Ishida, Hiroaki Okamoto 1999-11-02
5942788 Solid state image sensing device Kenji Takada, Kouichi Ishida, Keiichi Nomura, Hiroaki Okamoto 1999-08-24
5843589 Magnetic layered material, and magnetic sensor and magnetic storage/read system based thereon Hiroyuki Hoshiya, Susumu Soeya, Shigeru Tadokoro 1998-12-01
5719729 Magnetic head and recording and reproducing apparatus having an arrangement for improving coincidence between a magnetic center of a read head and physical center of a write head Naoki Koyama, Isamu Yuitoo, Kanji Kawakami, Kazuo Shiiki, Masahiro Kitada 1998-02-17
5686734 Thin film semiconductor device and photoelectric conversion device using the thin film semiconductor device Shigetoshi Sugawa, Tadashi Atoji, Hiroaki Okamoto 1997-11-11
5461526 Magnetoresistive read head and magnetic storage system using the same Toshio Kobayashi, Naoki Koyama, Masahiro Kitada 1995-10-24
5419781 Flexible photovoltaic device Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina 1995-05-30
5235591 Stack type optical disc apparatus, sealed and separate type optical head therefor and optical disc medium Shigeru Nakamura, Eiichi Seya, Seiichi Mita, Masuo Kasai, Masahiro Ojima +5 more 1993-08-10
5127964 Flexible photovoltaic device Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina 1992-07-07
5126907 Thin film magnetic head having at least one magnetic core member made at least partly of a material having a high saturation magnetic flux density Isamu Yuito, Hisashi Takano, Naoki Koyama, Eijin Moriwaki, Shinobu Sasaki +1 more 1992-06-30
5021103 Method of forming microcrystalline silicon-containing silicon carbide film Hiroaki Okamoto, Yutaka Hattori 1991-06-04
4943879 Thin film magnetic head including magnetic layers having high saturation magnetic flux density and metal film for avoiding deterioration during manufacturing Hisashi Takano, Kazuo Shiiki, Shigekazu Otomo, Noriyuki Kumasaka 1990-07-24
4881144 Thin film magnetic head Isamu Yuito, Eijin Moriwaki, Kazuo Shiiki, Hisashi Takano 1989-11-14
4875943 Flexible photovoltaic device Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina 1989-10-24
4820915 Color sensor with amorphous pin structure Funio Koike, Tetsuya Miyagishi 1989-04-11
4814921 Multilayered magnetic films and thin-film magnetic heads using the same as a pole Kazuo Shiiki, Yoshihiro Shiroishi, Isamu Yuitoo, Hitoshi Numasaka, Noriyuki Kumasaka +2 more 1989-03-21
4773942 Flexible photovoltaic device Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina 1988-09-27
4766039 Magnetic head made from amorphous magnetic film Shigekazu Otomo, Noriyuki Kumasaka, Noritoshi Saito, Takeo Yamashita, Kazuo Shiiki 1988-08-23
4762755 Ferromagnetic material and a magnetic head using the same material Kazuo Shiiki, Noriyuki Kumasaka, Yoshihiro Shiroishi, Hitoshi Nakamura, Noritoshi Saito +3 more 1988-08-09
4760481 Thin film magnetic head having an improved coil Isamu Yuito, Eijin Moriwaki, Kazuo Shiiki, Keiko Shiokawa, Saburo Suzuki +1 more 1988-07-26
4758399 Substrate for manufacturing single crystal thin films Hideyuki Takakura 1988-07-19