YI

Yoshinori Ishizawa

HC Hitachi Koki Co.: 25 patents #22 of 888Top 3%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
HC Hitachi Koko Co.: 1 patents #1 of 33Top 4%
KC Koki Holdings Co.: 1 patents #124 of 215Top 60%
📍 Ibaraki, JP: #227 of 6,779 inventorsTop 4%
Overall (All Time): #138,384 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
10744629 Fastener driving tool 2020-08-18
9967920 Electric device outputting light, wind, heat or sound Takafumi Itoh, Masato Sakai, Masanori Okada, Hiroyuki Hasegawa, Takashi Kawamata 2018-05-08
9669529 Driving tool with push lever configured to contact housing Haruhiko Oouchi 2017-06-06
9061408 Fastener driving tool Haruhiko Oouchi, Yoshimitsu Iijima 2015-06-23
8066165 Fastener driving tool Hiroki Kitagawa, Masashi Nishida 2011-11-29
7757921 Driving machine Masashi Nishida 2010-07-20
7441683 Fastener driving tool Hiroki Kitagawa, Masashi Nishida 2008-10-28
7398647 Pneumatically operated fastener driving tool Yoshiichi Komazaki, Masashi Nishida 2008-07-15
7395953 Fastener driving tool Hiroki Kitagawa, Masashi Nishida 2008-07-08
7325709 Fastener driving tool and magazine device Hiroki Kitagawa, Masashi Nishida 2008-02-05
7322505 Nail gun provided with duster function Yoshihiro Nakano 2008-01-29
7322501 Fastener driving tool Hiroki Kitagawa, Masashi Nishida 2008-01-29
7299959 Urged magazine for a fastener driving tool Hiroki Kitagawa, Masashi Nishida 2007-11-27
7243831 Fastener driving tool Hiroki Kitagawa, Masashi Nishida 2007-07-17
7156012 Pneumatically operated fastener driving tool Yoshiichi Komazaki, Masashi Nishida 2007-01-02
D519809 Portable pneumatic nailer Takeshi Taniguchi, Masato Sakai, Hiroki Kitagawa, Masashi Nishida 2006-05-02
7014089 Trigger valve apparatus for pneumatic tool Masanori Aoki, Hiroki Kitagawa 2006-03-21
6783050 Nail gun provided with duster function Yoshihiro Nakano 2004-08-31
6779699 Pneumatically operated nail gun having cylinder floating prevention arrangement Masanori Aoki 2004-08-24
6745928 Trigger valve apparatus for pneumatic tool Masanori Aoki, Hiroki Kitagawa 2004-06-08
D466781 Pneumatic nailing machine Takeshi Matsuoka, Yoshihiro Nakano 2002-12-10
D432882 Pneumatic nailing machine Takeshi Matsuoka, Masanori Aoki, Hiroki Kitagawa 2000-10-31
6006975 Pneumatically operated nail driver 1999-12-28
5873510 Repetitive striking type pneumatically operated nail gun Shoichi Hirai, Masanori Aoki 1999-02-23
5775201 Piston arrangement for a percussion tool Isamu Tanji 1998-07-07