YK

Yutaka Koizumi

Canon: 4 patents #158 of 2,200Top 8%
HI Hitachi: 1 patents #867 of 2,942Top 30%
HC Hitachi Electric Systems Co.: 1 patents #1 of 3Top 35%
Overall (1997): #3,014 of 185,788Top 2%
5
Patents 1997

Issued Patents 1997

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5682190 Ink jet head and apparatus having an air chamber for improving performance Toshiaki Hirosawa, Jiro Moriyama, Mineo Kaneko, Torachika Osada, Hidemi Kubota 1997-10-28
5659343 Method of forming an ink jet recording head having an orifice plate with positioning openings for precisely locating discharge ports in a recording apparatus Minoru Nozawa, Toshihiro Mori, Atsushi Saito 1997-08-19
5646659 Ink jet recording apparatus, and method with control of ink drops and ink mist Jiro Moriyama, Hisashi Fukushima, Toshiaki Hirosawa, Torachika Osada, Haruhiko Moriguchi +2 more 1997-07-08
5608435 Method for producing ink jet head having a plated bump-shaped electrode Yasutomo Watanabe 1997-03-04
5594350 Signal detecting circuit for digital controller Minoru Banjo, Takeshi Wakugawa 1997-01-14