HH

Hiroshi Hirayama

HI Hitachi: 46 patents #351 of 28,497Top 2%
TO Toyota: 11 patents #2,600 of 26,838Top 10%
SE Seiko Epson: 8 patents #2,198 of 7,774Top 30%
KM Konica Minolta: 7 patents #495 of 2,718Top 20%
KO Konica Minolta Opto: 7 patents #48 of 418Top 15%
TE Toyo Engineering: 5 patents #22 of 295Top 8%
MI Mitsui Toatsu Chemicals, Incorporated: 5 patents #267 of 1,543Top 20%
HC Hitachi Automotive Engineering Co.: 5 patents #22 of 314Top 8%
NE Nec: 4 patents #3,388 of 14,502Top 25%
NS Nippon Soken: 4 patents #322 of 1,540Top 25%
HC Hitachi Car Engineering Co.: 4 patents #107 of 465Top 25%
Canon: 4 patents #10,118 of 19,416Top 55%
NS National Semiconductor: 3 patents #635 of 2,238Top 30%
HS Hitachi Automotive Systems: 2 patents #689 of 1,636Top 45%
HS Hitachi-Lg Data Storage: 2 patents #125 of 294Top 45%
WI Wako Pure Chemical Industries: 2 patents #86 of 377Top 25%
TL Toyota Central R&D Labs: 2 patents #528 of 1,657Top 35%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
OL Olympus: 1 patents #2,078 of 3,097Top 70%
OC Otsuka Pharmaceutical Co.: 1 patents #681 of 1,273Top 55%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Tdk: 1 patents #2,493 of 3,796Top 70%
TC Tsukishima Kikai Co.: 1 patents #48 of 127Top 40%
FV Fuji Valve: 1 patents #2 of 10Top 20%
KO Konica: 1 patents #1,290 of 1,958Top 70%
DC Dipsol Chemicals Co.: 1 patents #28 of 59Top 50%
DT Daido Tokushuko: 1 patents #152 of 382Top 40%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
Overall (All Time): #12,942 of 4,157,543Top 1%
106
Patents All Time

Issued Patents All Time

Showing 51–75 of 106 patents

Patent #TitleCo-InventorsDate
7457224 Optical element having an anti-reflection film and optical pickup apparatus 2008-11-25
7383815 Air flow measuring device formed integrally with electronically controlled throttle body Shinya Igarashi, Takayuki Itsuji, Yasuo Makie 2008-06-10
7376057 Disk recording apparatus and disk recording method Takahiro Sunada, Takehiko Sekine 2008-05-20
7286464 Optical element and optical pick-up device 2007-10-23
7248550 Writing method and disk recording apparatus 2007-07-24
7215612 Disk recording apparatus and disk recording method Takahiro Sunada, Takehiko Sekine 2007-05-08
7106279 Display substrate, electro-optical device, and electronic apparatus 2006-09-12
7079323 Surface treatment method and optical part Tatsuo Ohta, Satoshi Nakano 2006-07-18
7034442 Electro-optical device, method of manufacturing the same, and electronic instrument Hayato Nakanishi 2006-04-25
6997162 Air flow measuring device formed integrally with electronically controlled throttle body Shinya Igarashi, Takayuki Itsuji, Yasuo Makie 2006-02-14
6889352 Digital signal forming method, disc recording media using the same, and reproducing method thereof 2005-05-03
6838798 Permanent magnet type rotating electric machine Ryoichi Takahata, Shinichi Wakui, Haruo Koharagi, Satoshi Kikuchi, Miyoshi Takahashi +4 more 2005-01-04
6810859 Control system of internal combustion engine with output correcting means of thermal type air flow sensor Yoshihiko Akagi, Takuto Okamoto, Kazuhiko Miya, Hatsuo Nagaishi, Tetsuya Iwasaki 2004-11-02
6806225 Catalyst for exhaust gas purification, process for producing the same, and method of purifying exhaust gas Yasuo Ikeda, Riemi Tanizawa, Sinji Tsuji 2004-10-19
6763429 Method and apparatus for recording and playing back information 2004-07-13
6681742 Air flow measuring device formed integrally with electronically controlled throttle body Shinya Igarashi, Takayuji Itsuji, Yasuo Makie 2004-01-27
6552461 Permanent magnet type rotating electric machine Ryoichi Takahata, Shinichi Wakui, Haruo Koharagi, Satoshi Kikuchi, Miyoshi Takahashi +4 more 2003-04-22
6535877 Pattern recognition apparatus 2003-03-18
6347353 Information medium having digital signals recorded thereon Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai, Toshifumi Takeuchi 2002-02-12
6332174 Digital signal reproducing apparatus Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai, Toshifumi Takeuchi 2001-12-18
6327905 Air flow measurement apparatus Takayuki Itsuji 2001-12-11
6324618 Optical disk reproducing apparatus Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai, Toshifumi Takeuchi 2001-11-27
6233649 Digital signal reproducing method Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai, Toshifumi Takeuchi 2001-05-15
6189379 Thermal type air flow measuring instrument for internal combustion engine Shinya Igarashi, Chihiro Kobayashi, Takayuki Saito, Nobukatsu Arai 2001-02-20
6181660 Digital signal processor circuit for reproduction of digital data Toshifumi Takeuchi, Hiroyuki Gunji 2001-01-30