TK

Toshiaki Koizumi

KC Koki Holdings Co.: 9 patents #11 of 215Top 6%
HC Hitachi Koki Co.: 6 patents #189 of 888Top 25%
Pioneer Electronic: 4 patents #477 of 1,840Top 30%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
📍 Ibaraki, JP: #355 of 6,779 inventorsTop 6%
Overall (All Time): #193,506 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
11770088 Electric power tool Kazutaka Iwata 2023-09-26
11123846 Electric tool Takuya Yoshinari 2021-09-21
11070160 Electric power tool Kazutaka Iwata 2021-07-20
10886764 Power tool Yoshikazu Kawano, Kazuhiko Funabashi, Hironori Mashiko 2021-01-05
10744633 Power Tool Takuya Yoshinari, Yoshikazu Kawano, Kazuhiko Funabashi 2020-08-18
10717138 Power tool Takuya Yoshinari, Kazuhiko Funabashi 2020-07-21
10536056 Electric power tool 2020-01-14
10505473 Electric tool Nobuhiro Takano, Kazutaka Iwata, Naoki Tadokoro, Hiroshi Haga, Shinichirou Satou 2019-12-10
10307841 Power tool Takuya Yoshinari, Kazuhiko Funabashi 2019-06-04
10205198 Power tool and battery pack Yoshikazu Kawano, Nobuhiro Takano, Kazuhiko Funabashi, Kenichirou Yoshida, Takao Aradachi 2019-02-12
10033323 Electric power tool Kazutaka Iwata 2018-07-24
9793847 Electric power tool Kazutaka Iwata 2017-10-17
9769990 Power tool Kazutaka Iwata, Yasutaka Shimizu 2017-09-26
9768713 Electric tool Naoki Tadokoro, Kazutaka Iwata, Eiji Nakayama 2017-09-19
9457459 Power tool provided with circuit board Naoki Tadokoro, Ken MIYAZAWA, Hajime Kikuchi 2016-10-04
7476977 Semiconductor chip mounting substrate, a method of producing the same, and a method of mounting a semiconductor chip Takeru Fujinaga, Kazuhiro Hirose, Hideaki Takemori 2009-01-13
7452798 Semiconductor chip mounting substrate, a method of producing the same, and a method of mounting a semiconductor chip Takeru Fujinaga, Kazuhiro Hirose, Hideaki Takemori 2008-11-18
5477154 An EDP checker including a matching circuit Kumio Takahashi, Shun Suzuki 1995-12-19
5084854 Optical disk reproducing apparatus Yuji Ikedo, Hisashi Hamachi, Gen Inoshita, Takaaki Matsumoto 1992-01-28
4949328 Disk player for playing both sides of a disk or multiple disks without ejection thereof and a disk player with a disk being played that overlaps disks stored in a storage receptor Masao Kase, Masatsugu Otaki, Masakazu Yamashita, Kenji Tanaka, Ryo Matsuura 1990-08-14
4845700 Front loading disc player Masao Kase, Masatsugu Otaki, Masakazu Yamashita, Kenji Tanaka, Ryo Matsuura 1989-07-04
4695995 Front loading disk player with improved disk sensor positioning 1987-09-22