HK

Hiroshi Kawahara

Brother Kogyo: 10 patents #856 of 2,767Top 35%
Nsk: 9 patents #164 of 1,559Top 15%
Tdk: 7 patents #849 of 3,796Top 25%
TA Tdk Electronics Ag: 7 patents #24 of 503Top 5%
GH Gree Holdings: 5 patents #61 of 205Top 30%
TL Toyota Central R&D Labs: 5 patents #200 of 1,657Top 15%
AC Asahi Glass Co.: 4 patents #490 of 2,251Top 25%
GC Goyo Paper Working Co.: 4 patents #3 of 17Top 20%
NC Nihon Dempa Kogyo Co.: 4 patents #88 of 296Top 30%
TO Toyota: 4 patents #6,703 of 26,838Top 25%
NE Nec: 2 patents #5,510 of 14,502Top 40%
MC Mec International Co.: 1 patents #15 of 48Top 35%
DC Diesel Kiki Co.: 1 patents #181 of 366Top 50%
NI Nikon: 1 patents #1,647 of 2,493Top 70%
📍 Fujisawa, JP: #5 of 21 inventorsTop 25%
Overall (All Time): #33,617 of 4,157,543Top 1%
65
Patents All Time

Issued Patents All Time

Showing 51–65 of 65 patents

Patent #TitleCo-InventorsDate
4772922 Copying apparatus Jun Sakai, Masanori Kobayashi 1988-09-20
4493569 Type wheel changing mechanism in a printer Kazuo Nakamura 1985-01-15
4491069 Printing hammer driver mechanism 1985-01-01
4460653 Magnetic recording medium Hitoshi Azegami, Fujio Shibata 1984-07-17
4442177 Alkyl ether methylolmelamine coating composition, coating process and transparent product Akinori Noda, Seiichi Miyasaka 1984-04-10
4434277 Polyol for a polyurethane prepared by reacting an epoxide with the reaction product of a phenol, an aromatic amine, an aldehyde and a dialkanolamine Shigeyuki Kozawa, Noboru Hasegawa 1984-02-28
4431702 Magnetic recording medium Hitoshi Azegami, Eiji Horigome 1984-02-14
4423453 Magnetic recording medium Hitoshi Azegami, Eiji Horigome 1983-12-27
4414288 Magnetic recording medium Hitoshi Azegami, Eiji Horigome 1983-11-08
4410590 Magnetic recording medium Hitoshi Azegami, Eiji Horigome 1983-10-18
4391877 Magnetic recording medium Fujio Shibata, Hitoshi Azegami 1983-07-05
4370383 Magnetic recording medium 1983-01-25
4367263 Magnetic recording medium Tadashi Nishimura, Masatsugu Funakoshi, Masaharu Nishimatsu 1983-01-04
4326958 Permselective membrane Tetsuro Yasuda 1982-04-27
4187377 Halogen-containing s-triazine compound Shigeyuki Narisawa, Shohei Yoshida 1980-02-05