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 276–300 of 366 patents

Patent #TitleCo-InventorsDate
6323163 Fluorocompound, lubricant, surface modifier, lubricating film, magnetic recording medium, and magnetic recording device Hiroshi Sasaki, Mitsuyoshi Shouji, Takayuki Nakakawaji, Tomoe Takamura, Mina Ishida +1 more 2001-11-27
6295634 Wiring design apparatus, wiring determination apparatus and methods thereof 2001-09-25
6268978 Magnetic disk apparatus Hiroshi Tani 2001-07-31
6239920 Zoom lens system Osamu Okubo, Akio Miyata 2001-05-29
6222681 Zoom lens system Osamu Okubo, Akio Miyata 2001-04-24
6192952 Pneumatic radial tires 2001-02-27
6152969 Anthrapyridone compounds, water-based ink composition, and articles colored therewith Yasuo Shirasaki, Katsunori Fujii 2000-11-28
6111841 Apparatus for and method of controlling playback light intensity for an optical recording medium Haruhisa Iida 2000-08-29
6102094 Pneumatic radial tire including high-hardness rubber 2000-08-15
6076579 Pneumatic tire including block shaped lands having chamfering 2000-06-20
6058995 Pneumatic radial tires with specified profile 2000-05-09
6041195 Camera capable of video and film shooting having optical viewfinder Tsutomu Honda, Tatsuya Suzuki 2000-03-21
6035911 Pneumatic tire including fluorine based oligomer Hideki Matsui, Toshiyuki Ota, Kenji Matsuo 2000-03-14
6031464 Security system based on certification Tsutomu Matsumoto, Masatake Ohno 2000-02-29
6025961 Zoom lens system having two lens units Tetsuo Kohno, Tomoo Doi 2000-02-15
5991258 Optical disk having data stored on a land portion and a groove portion with the land portion having a greater width than the groove portion Seiji Morita 1999-11-23
5954854 Method for recovering etchant from etching waste liquid containing iron chloride Tsutomu Inoshita, Tadao Kitazawa, Masaki Nagashima, Hiroshi Yoshino, Yonejiro Nagaoka +1 more 1999-09-21
5921303 Pneumatic radial tire including fine groove 1999-07-13
5905030 Method and apparatus for assaying enzymatic reaction Shigetoshi Okazaki 1999-05-18
5870333 Read voltage control device for semiconductor memory device 1999-02-09
5866683 Isoelectric point markers for isoelectric focusing with fluorescence detection Kiyohito Shimura, Kenichi Kasai, Hisayoshi Takamoto 1999-02-02
5862103 Magneto-optical recording method capable of determining optimum laser beam intensities Shinichi Kurita, Koichiro Ishii, Masashi Horikawa 1999-01-19
5852596 Adjusting a detected signal with a wave form equalizer based upon environmental temperature or heat characteristic of an optical disk Shinichi Kurita, Masashi Horikawa, Koichiro Ishii 1998-12-22
5852707 Photographed image reproducing apparatus Manabu Inoue, Hirokazu Yagura, Kouji Hamaguchi, Shigeru Wada, Katsuyuki Nanba 1998-12-22
5849118 Pneumatic radial tires with specified profile 1998-12-15