HI

Hiroyuki Ishikawa

TK Toshiba Tec Kabushiki Kaisha: 31 patents #73 of 1,664Top 5%
Brother Kogyo: 22 patents #376 of 2,767Top 15%
NE Nec: 11 patents #1,181 of 14,502Top 9%
SE Seiko Epson: 11 patents #1,668 of 7,774Top 25%
FU Fujifilm: 9 patents #988 of 4,519Top 25%
KS Kawasaki Steel: 8 patents #116 of 1,922Top 7%
Honda Motor Co.: 8 patents #2,726 of 21,052Top 15%
Rohm Co.: 8 patents #378 of 2,292Top 20%
PA Panasonic: 6 patents #4,438 of 21,108Top 25%
KT Kabushiki Kaisha Toshiba: 5 patents #5,683 of 21,451Top 30%
CP Chugai Pharmaceutical: 5 patents #198 of 1,238Top 20%
IL Isuzu Motors Limited: 4 patents #131 of 908Top 15%
SO Sony: 4 patents #8,966 of 25,231Top 40%
Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
SS Sumitomo Wiring Systems: 3 patents #955 of 2,615Top 40%
SI Sakata Inx: 3 patents #23 of 78Top 30%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
Casio Computer Co.: 3 patents #744 of 1,970Top 40%
AT Autonetworks Technologies: 2 patents #557 of 1,079Top 55%
TL Toyota Central R&D Labs: 2 patents #528 of 1,657Top 35%
KC Konishi Co.: 2 patents #11 of 62Top 20%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
HO Hosiden: 2 patents #123 of 328Top 40%
HH Hitachi High-Technologies: 1 patents #674 of 1,200Top 60%
CA Calsonic: 1 patents #72 of 204Top 40%
DC Delta Kogyo Co.: 1 patents #54 of 132Top 45%
HC Hitachi Powdered Metals Co.: 1 patents #113 of 246Top 50%
KA Kao: 1 patents #1,961 of 3,221Top 65%
Kyocera: 1 patents #2,054 of 3,732Top 60%
KC Kyodo Yushi Co.: 1 patents #63 of 191Top 35%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
RI Reprocell Incorporated: 1 patents #4 of 20Top 20%
SC Sbi Pharmaceuticals Co.: 1 patents #23 of 80Top 30%
Overall (All Time): #6,321 of 4,157,543Top 1%
148
Patents All Time

Issued Patents All Time

Showing 126–148 of 148 patents

Patent #TitleCo-InventorsDate
5709764 Method for assembling a disc-shaped recording medium Takatsugu Funawatari, Kenji Takahashi 1998-01-20
5691868 Disk cartridge with shutter and slider, and method of connecting them Takatsugu Funawatari, Hiroyuki Abe, Kazuo Niizaka 1997-11-25
5602590 Method for restricting total code volume in data-compression Kohji Numata 1997-02-11
5571305 Atomized steel powder excellent machinability and sintered steel manufactured therefrom Satoshi Uenosono, Kuniaki Ogura 1996-11-05
5565762 DC/DC converter and audio device incorporating the same Sachito Horiuchi 1996-10-15
5554338 Method of preparing composite sintered body Hiroshi Sugihara, Tsutomu Uemura, Akira Fujiki, Hiromasa Imazato, Shinichi Umino 1996-09-10
5534045 Water-atomized iron powder and method Kuniaki Ogura, Yoshiaki Maeda, Kouichi Komamura 1996-07-09
5507853 Iron powder and mixed powder for powder metallurgy as well as method of producing iron powder Kuniaki Ogura, Takeo Omura, Yoshiaki Maeda, Minoru Nitta, Hiroshi Ohtsubo +1 more 1996-04-16
5502693 Magnetic recording system for compensating leakage flux Ricardo Musashi Okamoto, Kouichi Matsumoto, Isao Kotani, Satoshi Kuroda, Kenji Fukui 1996-03-26
5493345 Method for detecting a scene change and image editing apparatus Hidehiro Matsumoto 1996-02-20
5476534 Iron-based powder mixture and method Kuniaki Ogura, Shigeaki Takajo, Akio Sonobe, Yoshiaki Maeda, Toshiyuki MINEGISHI 1995-12-19
5462577 Water-atomized iron powder and method Kuniaki Ogura, Yoshiaki Maeda, Kouichi Komamura 1995-10-31
5458670 Iron powder and mixed powder for powder metallurgy as well as method of producing iron powder Kuniaki Ogura, Takeo Omura, Yoshiaki Maeda, Minoru Nitta, Hiroshi Ohtsubo +1 more 1995-10-17
5446712 Optical system having a precision angular displacement mechanism including a flat metal spring Tadashi Yamada 1995-08-29
5444683 Optical reporting reproducing device having fixed and movable optical systems Shinji Haba, Kouichi Ebina, Takashi Takeda, Hirokazu Ito, Hideya Seki 1995-08-22
5342651 Method for manufacturing modified wood Hiroaki Usui, Shozo Hirao, Satoru Konishi, Kenji Oonisi, Arihiro Adachi 1994-08-30
5318802 Modifying a wood material utilizing formaldehyde polymer and sulfur dioxide Arihiro Adachi, Hiroaki Usui 1994-06-07
5279640 Method of making iron-based powder mixture Kuniaki Ogura, Shigeaki Takajo, Akio Sonobe, Yoshiaki Maeda, Toshiyuki MINEGISHI 1994-01-18
5143748 Timber surface improving treatment process Hiroaki Usui, Yasushi Sawada, Satiko Okazaki, Masuhiro Kogoma 1992-09-01
4942285 Method for welding metal honeycomb carrier Hiroyasu Koizumi 1990-07-17
4857365 Method of manufacturing modified wood material Shozo Hirao, Hiroaki Usui, Yoshihiro Ohta, Takashi Nakai, Satoru Konishi 1989-08-15
4614384 Electronic cash register Akira Takano, Yutaka Mizuno, Yoshiaki Honjo 1986-09-30
4482976 Voice data output apparatus for electronic cash registers 1984-11-13