TK

Tetsuya Kawaguchi

Ricoh Company: 5 patents #3,664 of 9,818Top 40%
Overall (All Time): #1,028,327 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7580651 Image forming apparatus and method of controlling energy saving mode Yoshiyuki Namizuka, Hiroshi Hosaka, Keiichiroh Katoh, Mitsuhisa Kanaya, Yuji Takahashi +4 more 2009-08-25
6823367 Method and apparatus for managing communication information collectively in communication terminal device Naoki Wakasugi 2004-11-23
6163601 Communications data terminal capable of performing a plurality of communication controls 2000-12-19
5995239 Facsimile apparatus, facsimile method, and facsimile system including a modem for determining a data rate Tetsuya Kagawa 1999-11-30
5303066 Image communication system having a function for shortening the pre-messaging procedure 1994-04-12