HK

Hiroki Kitagawa

HC Hitachi Koki Co.: 18 patents #45 of 888Top 6%
Sumitomo Electric Industries: 18 patents #1,247 of 21,551Top 6%
YA Yazaki: 11 patents #397 of 3,427Top 15%
HI Hitachi: 10 patents #4,206 of 28,497Top 15%
PA Panasonic: 4 patents #6,180 of 21,108Top 30%
KC Koki Holdings Co.: 3 patents #64 of 215Top 30%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
Canon: 2 patents #12,681 of 19,416Top 70%
HU Hokkaido University: 1 patents #20 of 74Top 30%
HI Hitchi: 1 patents #1 of 56Top 2%
HA Hitachi Astemo: 1 patents #649 of 1,276Top 55%
NC Nissin Kogyo Co.: 1 patents #171 of 334Top 55%
📍 Ibaraki, CA: #6 of 23 inventorsTop 30%
Overall (All Time): #27,593 of 4,157,543Top 1%
72
Patents All Time

Issued Patents All Time

Showing 51–72 of 72 patents

Patent #TitleCo-InventorsDate
D556943 Fluorescent lamp Shiro Iida 2007-12-04
7299959 Urged magazine for a fastener driving tool Yoshinori Ishizawa, Masashi Nishida 2007-11-27
7243831 Fastener driving tool Yoshinori Ishizawa, Masashi Nishida 2007-07-17
7042168 Fluorescent-lamp driving apparatus adopting high-frequency inverter driving method, and compact self-ballasted fluorescent lamp equipped with such fluorescent-lamp driving apparatus Hiroki Nakagawa 2006-05-09
D519809 Portable pneumatic nailer Takeshi Taniguchi, Masato Sakai, Yoshinori Ishizawa, Masashi Nishida 2006-05-02
7014089 Trigger valve apparatus for pneumatic tool Yoshinori Ishizawa, Masanori Aoki 2006-03-21
6999605 Picture matching processing according to environment variations Daiki Masumoto, Naoki Sashida, Masahiko Sugimura, Shigemi Nagata 2006-02-14
6984926 Compact self-ballasted fluorescent lamp resistant to heat deformation Yuji Tsuneto, Hiroki Nakagawa, Akiko Nakanishi, Kenji Itaya, Kenji Nakano +3 more 2006-01-10
6888955 Picture recognition apparatus and method Daiki Masumoto, Naoki Sashida, Shigemi Nagata 2005-05-03
6745928 Trigger valve apparatus for pneumatic tool Yoshinori Ishizawa, Masanori Aoki 2004-06-08
6339638 Telephone used for electronic money card transaction and method of operation of the same Masayuki Ohki, Atsuhiko Urushibara, Jun Furuya, Shigeyuki Ito, Takao Oosawa 2002-01-15
6189783 System for aiding in use of a facility arranged to equip visitors with portable information storing units, method for aiding in use of a facility, and recording medium for recording the method Yukie Motomiya, Jun Furuya, Tsutomu Hatakeyama 2001-02-20
D432882 Pneumatic nailing machine Takeshi Matsuoka, Yoshinori Ishizawa, Masanori Aoki 2000-10-31
6042002 Holding apparatus for a plurality of IC cards facilitating transactions of electronic money among the IC cards Masayuki Ohki, Atsuhiko Urushihara, Jun Furuya, Shigeyuki Itoh, Takao Oosawa 2000-03-28
6032857 Electronic money system Yo Miyamoto, Jun Furuta, Masaki Takano, Takashi Matsubara, Takao Ohsawa 2000-03-07
6016957 IC card reader/writer and method of operation thereof Masayuki Ohki, Atsuhiko Urushihara, Jun Furuya, Shigeyuki Itoh, Takao Oosawa 2000-01-25
6000607 IC card reader/writer and method of operation thereof Masayuki Ohki, Atsuhiko Urushihara, Jun Furuya, Shigeyuki Itoh, Takao Oosawa 1999-12-14
5952639 Depositing, withdrawal, balance check, exchange and transfer of electronic money in automatic cash handling machine Masayuki Ohki, Atsuhiko Urushihara, Jun Furuya, Takao Oosawa 1999-09-14
5936220 Electronic wallet and method of operation of the same Takeshi Hoshino, Jun Furuya, Koji Suso, Masaki Takano 1999-08-10
D411524 IC card reader and writer Jun Furuya, Kazuhiro Kawashima 1999-06-29
D405070 IC card reader and writer Atsuhiko Urushihara, Jun Furuya, Kazuhiro Kawashima 1999-02-02
4707147 Device for measuring plasma properties Yoshiaki Aoki, Naoyuki Kayukawa, Hatsuo Yamazaki, Yasutomo Ozawa 1987-11-17