HF

Hiroshi Fujiwara

Ricoh Company: 38 patents #399 of 9,818Top 5%
PA Panasonic: 19 patents #1,080 of 21,108Top 6%
OC Olympus Optical Co.: 16 patents #155 of 2,334Top 7%
Kubota: 6 patents #338 of 2,059Top 20%
KA Kaneka: 5 patents #246 of 1,525Top 20%
MC Maruzen Oil Co.: 4 patents #1 of 32Top 4%
Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
KE Kokusai Electric: 3 patents #177 of 583Top 35%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
MC Maruzen Petrochemical Co.: 2 patents #56 of 174Top 35%
RT Renesas Technology: 1 patents #1,991 of 3,337Top 60%
TL Tokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%
TC Toyo Advanced Technologies Co.: 1 patents #21 of 40Top 55%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
DA Daihen: 1 patents #169 of 305Top 60%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
HC Hitachi Automotive Engineering Co.: 1 patents #156 of 314Top 50%
JC J.S.T. Mfg. Co.: 1 patents #144 of 255Top 60%
KU Kyoto University: 1 patents #568 of 1,688Top 35%
BR Bell Communications Research: 1 patents #278 of 628Top 45%
MC Mitsubishi Rayon Engineering Co.: 1 patents #25 of 48Top 55%
NU National University Corporation Ehime University: 1 patents #37 of 160Top 25%
NS Nec Soft: 1 patents #14 of 38Top 40%
NI Nec Solution Innovators: 1 patents #69 of 178Top 40%
Overall (All Time): #10,641 of 4,157,543Top 1%
116
Patents All Time

Issued Patents All Time

Showing 76–100 of 116 patents

Patent #TitleCo-InventorsDate
6315932 Processes for the production of extruded foams of styrene resins Hiroshi Kobayashi, Fuminobu Hirose 2001-11-13
D402957 Battery charger for portable wireless phone Tatsuo Kuwayama, Tetsufumi Takayasu 1998-12-22
5805335 Operating microscope Takashi Fukaya, Koji Yasunaga, Masahiko Kinukawa, Yoshia Hoshino, Junichi Nozawa 1998-09-08
5748366 Surgical microscope Koji Yasunaga, Masami Hamada, Takashi Fukaya, Masahiko Kinukawa, Tomonori Ishikawa +2 more 1998-05-05
D392646 Holder for portable wireless car telephone Tetsufumi Takayasu, Tatsuo Kuwayama 1998-03-24
D388431 Portable wireless telephone Tetsufumi Takayasu, Tatsuo Kuwayama, Takao Kumakoshi 1997-12-30
5595742 Antimicrobial agent for staphylococcus Ken Sawai 1997-01-21
5579772 Surgical microscope system Masahiko Kinukawa, Masami Hamada, Takashi Fukaya, Masanori Kaneda, Toyoharu Hanzawa +4 more 1996-12-03
5552929 Stereomicroscope Takashi Fukaya, Masami Hamada, Shinichi Nakamura, Toyoharu Hanzawa, Masahiko Kinukawa +2 more 1996-09-03
5436626 Variable-length codeword encoder Toshifumi Sakaguchi, Akio Shimatzu, Ming-Ting Sun, Kou-Hu Tzou, Kun-Min Yang 1995-07-25
5405128 Sheet feed device for an image forming apparatus Kunio Hibi, Katsumi Kurihara, Hiroshi Tanabe, Masanori Matsuda, Takahiro Shinga +1 more 1995-04-11
5343836 Drive mechanism of engine ignition system 1994-09-06
5322269 Apparatus for feeding sheets separately using an electrostatic separator and separating member Noriaki Fukube, Katsumi Kurihara, Hiroshi Tanabe, Hiroyuki Inobe 1994-06-21
5316282 Sheet feeding and separating device for image forming equipment Noriaki Fukube, Katsumi Kurihara, Satoshi Takano, Hiroshi Tanabe, Kazunori Bannai +1 more 1994-05-31
5273039 Surgical microscope apparatus having a function to display coordinates of observation point Shigeo Tokunaga 1993-12-28
5253054 Frame skip encoding apparatus for moving images Hiroo Uwabu, Masanori Maruyama, Eiji Kakii 1993-10-12
5241401 Image signal encoding apparatus and method for controlling quantization step size in accordance with frame skip numbers Hiroo Uwabu, Masanori Maruyama, Eiji Kakii 1993-08-31
5227914 Stereomicroscope including a single variable magnification optical system Toyoharu Hanzawa, Tomonori Ishikawa, Shinichi Nakamura, Masahiko Kinukawa, Kimihiko Nishioka +5 more 1993-07-13
5219154 Sheet feeding and separating device for image forming equipment Noriaki Fukube, Katsumi Kurihara, Satoshi Takano, Hiroshi Tanabe, Kazunori Bannai +1 more 1993-06-15
5200594 Electrode for use in plasma arc working torch Toshihiko Okada, Masanobu Uchida 1993-04-06
5142361 Motion vector detecting apparatus for video telephone/teleconference systems Masashi Tayama, Masanori Maruyama 1992-08-25
5122904 Operating microscope with drape and suction means for removing air from the drape Masami Hamada, Shigeo Tokunaga, Masahiko Kinukawa, Tomonori Ishikawa, Takashi Fukaya +3 more 1992-06-16
5048941 Surgical miscroscope with a modular stand Masami Hamada, Kosaku Tsuboshima, Masahiko Kinukawa, Toshiyuki Tsunoda, Takashi Nagano +4 more 1991-09-17
4988791 Non-linear phosphazene polymer having schiff base structures, process for the preparation thereof, and curable phosphazene composition Isao Maruyama, Yoshiharu Ito, Hitoshi Shigematsu 1991-01-29
4914456 Electrostatographic apparatus Yuzo Kawano, Katsumi Ogawa, Tatsuya Tokoshima 1990-04-03