HK

Hiroshi Kumagai

HC Hitachi Construction Machinery Co.: 1 patents #58 of 185Top 35%
MJ Mahle Filter Systems Japan: 1 patents #2 of 5Top 40%
MG Mahle International Gmbh: 1 patents #40 of 179Top 25%
SO Sony: 1 patents #1,179 of 2,923Top 45%
Overall (2024): #84,808 of 561,600Top 20%
3
Patents 2024

Issued Patents 2024

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12121998 Brazing a stacked body with a screen Masahiro Ariyama, Yohei Hatano 2024-10-22
12068005 Tape reel and tape cartridge Taeko Takahashi, Yuji Iwahashi 2024-08-20
12031296 Construction machine Hiroaki FUJISHIMA, Yasuhiko Inaba 2024-07-09