YM

Yoshikane Matsumoto

HC Hitachi Koki Co.: 21 patents #28 of 888Top 4%
Ricoh Company: 4 patents #4,167 of 9,818Top 45%
RS Ricoh Printing Systems: 3 patents #44 of 200Top 25%
HS Hitachi Printing Solutions: 2 patents #23 of 99Top 25%
Overall (All Time): #124,100 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
5122003 Dot line printer having ink ribbon guides Toshio Hiki, Hiroyuki Kurosawa 1992-06-16
4889052 Paper feed control for a dot-line printer Toshio Hiki, Makoto Kurosawa 1989-12-26
4616943 Apparatus for preventing the rise of an ink ribbon Toshio Hiki 1986-10-14
4572685 Dot printer Tsuneki Kobayashi, Makoto Kurosawa, Minoru Seino 1986-02-25
4421430 Dot printer Tsuneki Kobayashi, Makoto Kurosawa, Minoru Seino 1983-12-20