MT

Masaaki Torichigai

MM Mitsubishi Mining: 6 patents #101 of 2,247Top 5%
KC Kansai Electric Power Co.: 2 patents #104 of 506Top 25%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
TI Tokyo Electric Power Company Holdings, Incorporated: 1 patents #245 of 711Top 35%
Overall (All Time): #718,458 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
10527588 Immersion-type ultrasound flaw detection device and ultrasound flaw detection system Mikiyasu Urata, Kiyotaka Aoki, Shinichi Tsuji 2020-01-07
4920804 Insert type ultrasonic crack hunting apparatus Keiichi Iwamoto 1990-05-01
4907542 Cleaning system for a horizontal type tube assembly Takuzo Maeyama, Kenichi Nii, Shigeru Shimojo, Keiichi Iwamoto 1990-03-13
4879973 Automatic tube circumference scanning apparatus Takuzo Maeyama, Kenichi Nii, Shigeru Shimojo, Keiichi Iwamoto, Kiyoshi Koizumi 1989-11-14
4872347 Automated ultrasonic examination system for heat transfer tubes in a boiler Yoshimi Okabe, Keiichi Iwamoto, Shozo Kaneko, Joji Ichinari, Kiyoshi Koizumi 1989-10-10
4854614 Cable insert nozzle Keiichi Iwamoto 1989-08-08
4800927 Cable insertion nozzle Keiichi Iwamoto 1989-01-31