HH

Hiroyuki Hanawa

HC Hitachi Koki Co.: 17 patents #49 of 888Top 6%
KC Koki Holdings Co.: 13 patents #4 of 215Top 2%
📍 Ibaraki, JP: #189 of 6,779 inventorsTop 3%
Overall (All Time): #120,914 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
7759899 Battery pack, and assembly of battery pack and motor-driven tool or charger Atsushi Nakagawa, Keita Saito 2010-07-20
D607814 Battery pack Hitoshi Tsuzuki, Kenichi Yamada, Takeshi Taniguchi, Shigeru Takahashi 2010-01-12
7521892 Cordless power tool with overcurrent protection circuit permitting the overcurrent condition during specified time periods Kazuhiko Funabashi, Takao Aradachi, Masayuki Ogura 2009-04-21
7446508 Battery charger for charging lithium-ion battery Takao Aradachi, Kazuhiko Funabashi, Masayuki Ogura 2008-11-04
D562227 Battery pack Kenichi Yamada, Masanori Okada 2008-02-19