YY

Yuji Yamane

TC Tomy Kogyo Co.: 2 patents #3 of 37Top 9%
HI Hitachi: 1 patents #814 of 2,935Top 30%
Overall (1989): #5,781 of 140,708Top 5%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4878869 Toys having magnetic switches Hideya Nishikawa 1989-11-07
4842502 Cotton candy machine Mitsuyo Tsumita 1989-06-27
4833665 Information recording control system reusing a defective area Kenji Tokumitsu, Takashi Doi, Michio Miyazaki, Nobuyoshi Izawa, Toru Takeda 1989-05-23