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 1–25 of 30 patents

Patent #TitleCo-InventorsDate
12224407 Battery pack and wireless linking system Satoshi Yamaguchi, Tatsuya Ito, Kenta HARADA, Hiromi Takahashi 2025-02-11
12125994 Electrical apparatus using battery pack Yasushi Nakano, Satoshi Yamaguchi, Kazuhiko Funabashi, Tomomasa Nishikawa, Shota Kanno +1 more 2024-10-22
12101830 Battery pack and electric device system Satoshi Yamaguchi, Toshiaki Masumori 2024-09-24
12074296 Battery pack, electric apparatus using battery pack, and electric apparatus main body Yasushi Nakano, Satoshi Yamaguchi, Kazuhiko Funabashi, Tomomasa Nishikawa, Shota Kanno +2 more 2024-08-27
12046721 Battery pack and electric apparatus using battery pack Yasushi Nakano, Satoshi Yamaguchi, Kazuhiko Funabashi, Tomomasa Nishikawa, Shota Kanno +2 more 2024-07-23
11837741 Electrical apparatus using battery pack Takuhiro Murakami, Tomomasa Nishikawa, Shinji Watanabe, Junpei Sato, Hikaru Tamura +9 more 2023-12-05
11824169 Battery pack, electrical device using battery pack, and electrical device system Tomomasa Nishikawa, Takuya Teranishi, Naoto Wakatabe, Akira Matsushita, Masaru Hirano +15 more 2023-11-21
11710860 Battery pack and electrical apparatus using battery pack Yasushi Nakano, Satoshi Yamaguchi, Kazuhiko Funabashi, Tomomasa Nishikawa, Shota Kanno +1 more 2023-07-25
11637433 Battery pack and electrical apparatus Satoshi Yamaguchi, Yasushi Nakano, Kazuhiko Funabashi 2023-04-25
11367907 Battery pack and electric apparatus using battery pack Yasushi Nakano, Satoshi Yamaguchi, Kazuhiko Funabashi, Tomomasa Nishikawa, Shota Kanno +2 more 2022-06-21
11229997 Working machine Shota Hirano, Keita Saitou, Naoki Sato 2022-01-25
11205820 Battery pack, electrical device using battery pack, and electrical device system Tomomasa Nishikawa, Shota Kanno, Toshio Mizoguchi, Yasushi Nakano, Kazuhiko Funabashi +15 more 2021-12-21
10263228 Electric device including sealing member between attachment part and battery pack Tomomasa Nishikawa, Tetsuhiro Harada, Chikai Yoshimizu 2019-04-16
9748534 Electric tool and battery pack for the electric tool Shota Takeuchi, Yoshihiro Nakano, Itsushi Ogawa, Kousei Yokoyama 2017-08-29
9236588 Battery pack and power tool provided with the same Haruhisa Fujisawa, Keita Saitou 2016-01-12
8895182 Battery pack and power tool provided with the same Haruhisa Fujisawa, Keita Saitou 2014-11-25
8765280 Battery pack and battery-driven power tool using the same Takashi Ueda, Haruhisa Fujisawa, Junichi Toukairin, Keita Saitou 2014-07-01
8684106 Battery pack and motor-driven tool using the same Kousei Yokoyama, Keita Saitou 2014-04-01
8579042 Battery pack and cordless tool using the same Kiyoshi Kato, Kazuhiko Funabashi, Katsuhiro Oomori 2013-11-12
8381829 Battery pack and cordless tool using the same Kiyoshi Kato, Kazuhiko Funabashi, Katsuhiro Oomori 2013-02-26
8035350 Battery charger Takao Aradachi, Shinji Watanabe, Kazuhiko Funabashi 2011-10-11
7969116 Power pack and cordless power tool having the same Takao Aradachi, Nobuhiro Takano, Tomomasa Nishikawa, Masayuki Ogura, Kazuhiko Funabashi 2011-06-28
7956575 Charging device for battery Yoshikazu Kawano, Nobuhiro Takano, Shinji Watanabe 2011-06-07
7948210 Battery pack and electric tool Kazuhiko Funabashi, Nobuhiro Takano, Eiji Nakayama, Atsushi Sumi, Keita Saitou 2011-05-24
7807293 Battery pack and motor-driven tool using the same Kousei Yokoyama, Keita Saitou 2010-10-05