TN

Tomomasa Nishikawa

HC Hitachi Koki Co.: 49 patents #4 of 888Top 1%
KC Koki Holdings Co.: 28 patents #1 of 215Top 1%
HC Hitachi Koko Co.: 1 patents #1 of 33Top 4%
📍 Ibaraki, JP: #27 of 6,779 inventorsTop 1%
Overall (All Time): #23,719 of 4,157,543Top 1%
78
Patents All Time

Issued Patents All Time

Showing 26–50 of 78 patents

Patent #TitleCo-InventorsDate
10325475 Abnormality reporting system and electric tool, and communication terminal Takuya Konnai, Tatsuya Ito 2019-06-18
10286462 Cutting machine 2019-05-14
10263228 Electric device including sealing member between attachment part and battery pack Tetsuhiro Harada, Chikai Yoshimizu, Hiroyuki Hanawa 2019-04-16
9970445 Portable blower Seiichi Kodato, Mizuho Nakamura, Kouji Sagawa 2018-05-15
9950417 Power tool Yutaka Ito, Katsuhiro Oomori, Mizuho Nakamura, Hironori Mashiko 2018-04-24
9940813 Abnormality reporting system and electric tool, and communication terminal Takuya Konnai, Tatsuya Ito 2018-04-10
9869327 Portable blower Seiichi Kodato, Mizuho Nakamura, Kouji Sagawa 2018-01-16
9833890 Electric tool and communication plug for electric tool Tatsuya Ito, Hironori Mashiko, Mizuho Nakamura, Yoshio Iimura 2017-12-05
9616558 Impact tool Nobuhiro Takano, Hideyuki Tanimoto, Kazutaka Iwata, Hironori Mashiko, Hayato Yamaguchi +6 more 2017-04-11
9539649 Power tool and method for producing the same Tetsuhiro Harada, Hiroki Uchida, Yoshihiro Nakano, Hiroki Tsunoda, KATSUAKI SUKEGAWA +1 more 2017-01-10
9522461 Impact tool Katsuhiro Oomori, Mizuho Nakamura, Yutaka Ito, Nobuhiro Takano, Hironori Mashiko +1 more 2016-12-20
9473055 Electric working machine Tatsuya Ito, Mizuho Nakamura, Yoshio Iimura 2016-10-18
9314908 Impact tool Hideyuki Tanimoto, Nobuhiro Takano, Kazutaka Iwata, Hironori Mashiko, Hayato Yamaguchi +6 more 2016-04-19
9101993 Portable cutter Tomoyoshi Yokota, Tetsuo Ebata, Shinji Kuragano 2015-08-11
9068504 Engine operated machine Fumikazu Hirasawa 2015-06-30
9048699 Power tool Katsuhiro Oomori, Junichi Toukairin, Nobuhiro Takano, Kazutaka Iwata 2015-06-02
8925645 Oil pulse tool Tetsuhiro Harada, Kazutaka Iwata, Shinki Ohtsu, Nobuhiro Takano 2015-01-06
8640789 Oil pulse tool Tetsuhiro Harada, Kazutaka Iwata, Shiniki Otsu, Nobuhiro Takano 2014-02-04
8529169 Drilling tool with dust collector Kenji Kobori, Tsukasa Suzuura 2013-09-10
8522519 Lawn mower Kenji Kobori, Hiroto Inagawa 2013-09-03
8371034 Dust collection cover attachable to cutter Shinki Ohtsu 2013-02-12
8342782 Drilling tool with dust collector Kenji Kobori, Shingo Yamazaki 2013-01-01
8338997 Power tool 2012-12-25
8205777 Fuel, gas, combustion type power tool driven by the fuel gas, and compressed gas container for the combustion type power tool Shinki Ohtsu, Yasuki Ohmori, Kunio Yamamoto 2012-06-26
7969116 Power pack and cordless power tool having the same Takao Aradachi, Nobuhiro Takano, Hiroyuki Hanawa, Masayuki Ogura, Kazuhiko Funabashi 2011-06-28