TI

Takehiko Iwaoka

Ricoh Company: 6 patents #3,275 of 9,818Top 35%
TC Tohoku Ricoh Co.: 5 patents #26 of 204Top 15%
Overall (All Time): #873,652 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7201938 Thermosensitive stencil paper and method of producing the same Fumiaki Arai, Yuji Natori, Masanori Rimoto 2007-04-10
6403150 Heat-sensitive stencil and method of fabricating same Masayuki Ohta, Fumiaki Arai, Hiroshi Tateishi, Masanori Rimoto, Hideki Ono +2 more 2002-06-11
6372332 Thermosensitive stencil paper and method of producing the same Fumiaki Arai, Yuji Natori, Masanori Rimoto 2002-04-16
6096374 Heat-sensitive stencil and method of fabricating same Masayuki Ohta, Fumiaki Arai, Hiroshi Tateishi, Masanori Rimoto, Hideki Ono +2 more 2000-08-01
5843560 Heat-sensitive stencil and method of fabricating same Masayuki Ohta, Fumiaki Arai, Hiroshi Tateishi, Masanori Rimoto, Hideki Ono +2 more 1998-12-01
4220699 Method for producing a large number of copies by means of copying apparatus Tsutomu Ishida 1980-09-02