NI

Naoto Ichihashi

HC Hitachi Koki Co.: 7 patents #164 of 888Top 20%
KC Koki Holdings Co.: 6 patents #31 of 215Top 15%
📍 Ibaraki, JP: #755 of 6,779 inventorsTop 15%
Overall (All Time): #362,794 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
12283834 Charging device of electric tool to reduce noise Mikihiro Kataoka 2025-04-22
11953016 Blower Mikihiro Kataoka 2024-04-09
11490543 DC power supply device Takuya Yoshinari, Yuji Kishima 2022-11-01
10718243 Engine and engine-driven working machine Youhei Kinugawa 2020-07-21
10280827 Engine and engine-driven working machine Keisuke Ikeda, Kazuhiro OOTSUKA 2019-05-07
10260453 Two-cycle engine and engine work machine Yosuke Yoshizaki 2019-04-16
9982665 Air compressor with improved cooling performance 2018-05-29
9359937 Two-cycle engine and engine tool comprising the same 2016-06-07
9249715 Air cooled engine and engine-powered work tool 2016-02-02
9140175 Engine and engine-operated working machine 2015-09-22
9010284 Engine and engine power tool 2015-04-21
8821131 Air compressor Tomoyoshi Yokota, Seiichi Kodato, Kenichi Matsunaga, Kazuhiro Segawa 2014-09-02
8800505 Engine power tool 2014-08-12