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 301–325 of 366 patents

Patent #TitleCo-InventorsDate
5835675 Photographed image reproducing apparatus Manabu Inoue, Hirokazu Yagura, Kouji Hamaguchi, Shigeru Wada, Katsuyuki Nanba 1998-11-10
5831943 Stabilized overwriteable optical recording method using laser beam intensity settings Shinichi Kurita, Koichiro Ishii, Masashi Horikawa 1998-11-03
5830834 Ammonium carboxylate type fluorine-containing compound, solid surface modifier containing the same and magnetic recording medium using the same Mitsuyoshi Shoji, Takayuki Nakakawaji, Hiroshi Sasaki, Yutaka Ito, Shigeki Komatsuzaki 1998-11-03
5825724 Magneto-optical recording method using laser beam intensity setting based on playback signal Koichiro Ishii 1998-10-20
5820964 Magnetic disk, and magnetic disk apparatus Takayuki Nakakawaji, Shuji Imazeki, Yutaka Ito, Yuko Morita, Mitsuyoshi Shouji +5 more 1998-10-13
5808972 Stabilized overwriteable optical recording method using laser beam intensity settings Koichiro Ishii, Kazutomo Miyata 1998-09-15
5726954 Optical recording method and apparatus Shinichi Kurita, Koichiro Ishii, Masashi Horikawa 1998-03-10
5701518 Waterproof camera Tsutomu Honda, Hisanori Itoh, Takuya Ueno, Junji Mori, Yasushi Hasegawa +1 more 1997-12-23
5701204 Zoom lens system 1997-12-23
5688288 Disperse dye composition and method for dyeing hydrophobic fiber material therewith Yoshiki Akatani, Yasuo Murakami, Kiyoko Tanaka 1997-11-18
D386500 Video editor with liquid crystal monitor Takashi Hiraoka, Sadayoshi Azuma, Akio Ohno 1997-11-18
5684765 Optical recording method and control Shinichi Kurita, Koichiro Ishii, Masashi Horikawa 1997-11-04
5680529 Image reduction conversion method 1997-10-21
RE35630 Over write capable magnetooptical recording medium, recording method and apparatus using the same Jun Saito, Masatoshi Sato 1997-10-14
5657330 Single-chip microprocessor with built-in self-testing function 1997-08-12
5645911 Over-writable method of magnetooptical recording 1997-07-08
5643374 Pneumatic tire including fine grooves 1997-07-01
5633759 Zoom lens system Hideki Nagata, Soh Ohzawa, Masakuni Tai 1997-05-27
D379005 Video editor with liquid crystal monitor Takashi Hiraoka, Sadayoshi Azuma, Akio Ohno 1997-04-29
D378677 Video editor with liquid crystal monitor Sadayoshi Azuma, Takashi Hiraoka 1997-04-01
5585200 Over write capable magnetooptical recording medium Masatoshi Sato 1996-12-17
D375305 Digital video cassette Takashi Hiraoka, Kazuhiro Ueda, Sadayoshi Azuma, Akio Ohno, Kunihiko Kaneda +1 more 1996-11-05
5547437 Adaptive pressure control based on difference between target and actual shift times during a shift Shinya Kamada, Hiroaki Yokota, Shigeru Nagayama, Yuji Nakahara, Shin Nakano +2 more 1996-08-20
5543203 Magnetic recording medium having a protective layer which includes high and low surface energy regions and a lubricant Hiroshi Tani, Heigo Ishihara 1996-08-06
5539582 Zoom lens system Tetsuo Kohno 1996-07-23