KK

Kiyoshi Koizumi

MM Mitsubishi Mining: 2 patents #467 of 2,247Top 25%
DI Daikin Industries: 1 patents #1,764 of 2,957Top 60%
KC Kansai Electric Power Co.: 1 patents #210 of 506Top 45%
TI Tokyo Electric Power Company Holdings, Incorporated: 1 patents #245 of 711Top 35%
Overall (All Time): #1,582,383 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7392158 Drive unit for compressor and refrigerator Takeshi Hikawa, Toshiyuki Maeda, Shinichi Kasahara, Takahiro Yamaguchi, Shigenobu Izumi +1 more 2008-06-24
4879973 Automatic tube circumference scanning apparatus Takuzo Maeyama, Kenichi Nii, Shigeru Shimojo, Keiichi Iwamoto, Masaaki Torichigai 1989-11-14
4872347 Automated ultrasonic examination system for heat transfer tubes in a boiler Yoshimi Okabe, Keiichi Iwamoto, Masaaki Torichigai, Shozo Kaneko, Joji Ichinari 1989-10-10