TK

Tomohiko Kamatani

Ricoh Company: 31 patents #601 of 9,818Top 7%
Overall (All Time): #118,458 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
7679296 Light emitting diode drive circuit 2010-03-16
7671564 Integrated circuit for controlling charging, charging device using the integrated circuit, and method for detecting connection of secondary battery 2010-03-02
7649343 Charge control circuit, charging device, and connection checking method 2010-01-19
7592855 Trimming circuit and semiconductor device 2009-09-22
7573922 Semiconductor laser driving unit and image forming apparatus having the same Hiroaki Kyogoku 2009-08-11
7479765 Integrated circuit for controlling charging, charging device using the integrated circuit, and method for detecting connection of secondary battery 2009-01-20