MH

Masashi Hirokawa

Ricoh Company: 6 patents #3,275 of 9,818Top 35%
Overall (All Time): #872,593 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7420714 Method for monitoring performance of image forming apparatus 2008-09-02
6697172 Apparatus and method of transmitting performance measurement data to a control center 2004-02-24
6115144 Data processing apparatus and system 2000-09-05
6104506 Facsimile apparatus having function of updating incorporated program 2000-08-15
5936746 Facsimile apparatus 1999-08-10
5640248 Facsimile apparatus for compressing and storing program related to maintenance function 1997-06-17