KK

Kazushige Koiwai

KC Kobelco Construction Machinery Co.: 14 patents #22 of 422Top 6%
HU Hiroshima University: 3 patents #41 of 421Top 10%
KS Kobe Steel: 2 patents #616 of 1,773Top 35%
Overall (All Time): #340,592 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
12173476 Hydraulic work machine Yohei Ono, Natsuki Yumoto, Shin WAKITANI, Toru Yamamoto 2024-12-24
11851852 Construction machine and evaluation device Masatoshi KOZUI, Toru Yamamoto 2023-12-26
11391016 Construction machine Masatoshi KOZUI, Toru Yamamoto, Masaki Akiyama 2022-07-19
10320257 Electric motor and method for manufacturing same Seiji Saiki 2019-06-11
10053837 Slewing control device for hybrid construction machine and hybrid construction machine Takayuki Doi 2018-08-21
10033241 Generator motor Seiji Saiki, Seiichi Onishi 2018-07-24
10014743 Electric motor Seiji Saiki 2018-07-03
9973053 Electric motor having sealed casing and manufacturing method thereof Akira Nakazumi, Seiji Saiki, Yoshiki Karata, Yoichiro Yamazaki 2018-05-15
9935525 Electric motor Seiji Saiki 2018-04-03
9758945 Upper slewing body of construction machine Seiji Saiki, Seiichi Onishi 2017-09-12
9664107 Driving device for hybrid working machine Seiji Saiki, Yoichiro Yamazaki 2017-05-30
9624647 Slewing-type working machine Koji Yamashita, Masayuki Komiyama, Koji Ueda, Kengo Maeda 2017-04-18
9062692 Hybrid construction machine Mitsunori Hirozawa, Yoichiro Yamazaki 2015-06-23
9000630 Motor including heat radiating resin Akira Tsutsui, Seiji Saiki, Akira Nakazumi 2015-04-07