OK

Osamu Kitagawa

DC Dainippon Screen Mfg. Co.: 7 patents #92 of 977Top 10%
Ricoh Company: 5 patents #3,664 of 9,818Top 40%
ZC Zeria Pharmaceutical Co.: 2 patents #24 of 123Top 20%
SE Seiko Epson: 1 patents #5,551 of 7,774Top 75%
Overall (All Time): #313,840 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
12157085 Filter pack and air filter Hirokazu Izumiya, Shiro Hayashi 2024-12-03
10503118 Image forming apparatus having air cooling system Tomohiro Komatsuzaki 2019-12-10
10162305 Image forming apparatus having air cooling system Tomohiro Komatsuzaki 2018-12-25
9727022 Image forming apparatus having air cooling system Tomohiro Komatsuzaki 2017-08-08
9204005 Image forming apparatus usable with a memory card Yasuharu Matsubara, Hisayoshi Imai 2015-12-01
8260158 Recording sheet processing device Takeshi Goto, Fumi Miura 2012-09-04
7370929 Printer, dither matrix generation method, and recording medium 2008-05-13
7360866 Printer and head unit fabricating method Masayuki Murai, Seiji Mochizuki, Masahiro Nakamura 2008-04-22
5981557 Aminothiazole derivative, medicament containing the same, and intermediate for preparation of said compound Masaaki Nagasawa, Masakazu Murata, Hiroyasu Nishioka, Tadashi Kurimoto, Shigeru Ueki 1999-11-09
5574054 Quaternary ammonium salts and use thereof as medicine Katsuyuki Ishii, Seiichi Niwa, Sigeru Ueki, Masao Seiki 1996-11-12
5067025 Method of recording halftone dot image 1991-11-19
5055923 Method of and apparatus for recording halftone images and halftone images produced thereby Takashi Sakamoto 1991-10-08
4916367 Method of and apparatus for preventing scanning line deviation in a process scanner of a separated drum type Takuya Yamaguchi 1990-04-10
4679071 Method of recording register marks 1987-07-07
4652914 Method of recording register marks 1987-03-24