HM

Hiroyuki Matsumoto

PA Panasonic: 58 patents #155 of 21,108Top 1%
Tdk: 44 patents #58 of 3,796Top 2%
Bridgestone: 35 patents #27 of 2,860Top 1%
NI Nikon: 29 patents #123 of 2,493Top 5%
NK Nippon Kayaku: 18 patents #7 of 1,103Top 1%
JC J.S.T. Mfg. Co.: 16 patents #6 of 255Top 3%
HI Hitachi: 14 patents #2,889 of 28,497Top 15%
SO Sony: 12 patents #3,691 of 25,231Top 15%
HB Hgst Netherlands, B.V.: 10 patents #69 of 972Top 8%
Kyocera: 9 patents #261 of 3,732Top 7%
MC Minolta Co.: 9 patents #239 of 1,416Top 20%
TC Toyo Tire & Rubber Co.: 8 patents #41 of 499Top 9%
Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
SC Sanyo Electric Co.: 7 patents #794 of 6,347Top 15%
MC Murata Manufacturing Co.: 7 patents #1,107 of 5,295Top 25%
KI Konica Minolta Photo Imaging: 5 patents #7 of 106Top 7%
Canon: 5 patents #9,253 of 19,416Top 50%
HG HGST: 5 patents #567 of 1,677Top 35%
MC Mitsubishi Gas Chemical Company: 5 patents #395 of 1,727Top 25%
Mazda Motor: 4 patents #991 of 4,755Top 25%
TB Takara Bio: 3 patents #63 of 224Top 30%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
MI Minolta: 3 patents #494 of 1,109Top 45%
NC Nhk Spring Co.: 3 patents #263 of 1,116Top 25%
Pioneer: 3 patents #574 of 1,730Top 35%
TU Tohoku University: 3 patents #210 of 1,680Top 15%
Yamaha Motor: 3 patents #603 of 2,310Top 30%
IBM: 3 patents #26,272 of 70,183Top 40%
Samsung: 3 patents #30,683 of 75,807Top 45%
NT Nec Tokin: 2 patents #100 of 299Top 35%
HK Hamamatsu Photonics K.K.: 2 patents #676 of 1,436Top 50%
RT Renesas Technology: 2 patents #1,374 of 3,337Top 45%
SH Shimadzu: 2 patents #805 of 2,007Top 45%
HC Hitachi Ulsi Systems Co.: 2 patents #419 of 867Top 50%
TC Tex E.G. Co.: 2 patents #2 of 6Top 35%
TO Tokin: 2 patents #60 of 278Top 25%
LB Laboratory Of Molecular Biophotonics: 2 patents #7 of 34Top 25%
AC Asahi Kasei Kogyo Co.: 2 patents #303 of 1,395Top 25%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
MC Mitsubishi Electric Semiconductor Software Co.: 1 patents #33 of 117Top 30%
SU Subaru: 1 patents #819 of 1,684Top 50%
KC Kanto Denka Kogyo Co.: 1 patents #61 of 140Top 45%
HS Hitachi Automotive Systems: 1 patents #965 of 1,636Top 60%
KD Kdd: 1 patents #44 of 96Top 50%
TC Tohoku Magnet Institute Co.: 1 patents #9 of 15Top 60%
AC Aupac Co.: 1 patents #8 of 8Top 100%
KC Kansai Paint Co.: 1 patents #432 of 822Top 55%
HA Hitachi Astemo: 1 patents #649 of 1,276Top 55%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
NK Nihon Kohden: 1 patents #238 of 467Top 55%
KS Kabushiki Kaisha Hitachi Seisakusho: 1 patents #13 of 55Top 25%
JC Japan Metal Gasket Co.: 1 patents #3 of 7Top 45%
NT NTT: 1 patents #2,911 of 4,871Top 60%
AC Atsumitec Co.: 1 patents #14 of 44Top 35%
WT Western Digital Technologies: 1 patents #1,787 of 3,180Top 60%
RN Research Investment Network: 1 patents #17 of 40Top 45%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
📍 Tokyo, CA: #6 of 583 inventorsTop 2%
Overall (All Time): #784 of 4,157,543Top 1%
366
Patents All Time

Issued Patents All Time

Showing 251–275 of 366 patents

Patent #TitleCo-InventorsDate
6884308 Method of manufacturing monolithic ceramic electronic part and monolithic ceramic electronic part 2005-04-26
D504107 Automobile tire tread Yukari Kanei 2005-04-19
6869536 Lubricant, magnetic disk and magnetic disk apparatus Mina Ishida, Takayuki Nakakawaji, Yutaka Ito, Hiroshi Tani, Heigo Ishihara 2005-03-22
6870704 Magnetic disc apparatus and its fabricating method Mitsuhiro Shoda, Hiroshi Tani, Takayuki Nakakawaji 2005-03-22
6860307 Pneumatic tire and a process for mounting the tire onto vehicle Daisuke Maehara 2005-03-01
6840296 Pneumatic tire having excellent steering stability Takashi Suzuki, Kazuto Fujita 2005-01-11
6829134 Laminated ceramic electronic component and method for manufacturing the same Makoto Yamauchi, Akihiro Shimizu, Kazuaki Kawabata, Hiroaki Taira 2004-12-07
6822938 Optical disk having lands and grooves with a reduced track pitch Seiji Morita, Masatoshi Hayashi, Satomi Yoshibe 2004-11-23
6816341 Hard disk drive utilizing second lubricant over a first lubricant having a phosophezine group Hiroshi Tani, Mitsuhiro Shoda, Koji Sonoda, Takayuki Nakakawaji, Mina Amo +1 more 2004-11-09
6773784 Magnetic disk having ultrathin carbon protective film and magnetic disk apparatus Kouji Sonoda, Hiroshi Tani, Mitsuhiro Shoda, Toshinori Ono 2004-08-10
6665147 Magnetic disk drive with supply of perfluoropolyether as lubricant Takayuki Nakakawaji, Mina Ishida, Yutaka Ito, Hiroshi Tani 2003-12-16
6648952 Anthrapyridone compound, aqueous magenta ink compositions and ink-jet recording method Yasuo Murakami, Junko Yoshioka, Yasuo Shirasaki, Katsunori Fujii 2003-11-18
6645283 Anthrapyridone compounds, water-based magenta ink composition, and method of ink-jet printing Takafumi Fujii, Yasuo Shirasaki, Hirokazu Kitayama 2003-11-11
6605335 Magnetic recording medium Hiroshi Tani, Mitsuhiro Shyoda, Tomonori Kozaki, Takayuki Nakakawaji, Yoko Ogawa 2003-08-12
6591880 Pneumatic tire including zig-zag circumferential fine grooves Ken Masaoka, Akiyoshi Shimizu 2003-07-15
6555197 Lubricant, magnetic disk and magnetic disk apparatus Mina Ishida, Takayuki Nakakawaji, Yutaka Ito, Hiroshi Tani, Heigo Ishihara 2003-04-29
6530985 Water-based magenta ink composition and method of ink-jet recording Yasuo Shirasaki, Katsunori Fujii, Yoshiki Akatani 2003-03-11
6523892 Seat structure for vehicle Masayuki Kage, Kazutaka Ishikura, Takao Fukuda, Toshihiro Ishikawa, Naoki Okano 2003-02-25
6510544 Wiring design apparatus and method thereof Minoru Katsumata, Kazuhiko Hirayama 2003-01-21
6490713 Method and apparatus for automatically generating multi-terminal nets, and program storage medium storing program for executing automatic multi-terminal net generation method 2002-12-03
6471760 Anthrapyridone compounds, water-based magenta ink composition, and method of ink-jet recording Yasuo Murakami, Yasuo Shirasaki, Katsunori Fujii, Toru Tabei 2002-10-29
6405772 Pneumatic tire having excellent steering stability and chamfered blocks Takashi Suzuki, Kazuto Fujita 2002-06-18
6407979 High density optical disk and a method for manufacturing same Seiji Morita, Masatoshi Hayashi 2002-06-18
6346925 Antenna and portable terminal apparatus 2002-02-12
6332485 Pneumatic tire including rib-shaped lands 2001-12-25