SS

Shigeo Sugimoto

HI Hitachi: 2 patents #336 of 2,935Top 15%
HC Hitachi Cable: 1 patents #5 of 54Top 10%
OC Osaka Gas Co.: 1 patents #4 of 33Top 15%
TC Toho Gas Co.: 1 patents #1 of 11Top 10%
📍 Ibaraki, JP: #35 of 447 inventorsTop 8%
Overall (1989): #15,835 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4841744 Double effect air cooled absorption refrigerating machine Shigekichi Kurosawa, Yoshikazu Nagaoka, Shinichi Kannoh, Sadatoshi Takemoto, Tomihisa Oouchi +5 more 1989-06-27
4794775 Method of producing a heat transfer tube for single-phase flow Heikichi Kuwahara, Kenji Takahashi, Takehiko Yanagida, Wataru Nakayama, Kiyoshi Oizumi 1989-01-03