Ryuji Usami has been granted 8 US patents while listed as an inventor at Casio Computer Co. . The first was granted in 1991 and the most recent in March 1999. Ryuji Usami ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Ryuji Usami in Fussa, JP.
Patents per Year Patents granted per year, 1991 to 1999 Bar chart with a peak of 2 patents in 1991. peak 2 1991: 2 patents 1991 1993: 1 patents 1993 1994: 1 patents 1994 1996: 1 patents 1996 1997: 1 patents 1997 1998: 1 patents 1998 1999: 1 patents 1999
Issued Patents All Time
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Showing 1–8 of 8 patents
Patent # Title Co-Inventors Date
5883611 Image controller having printer — 1999-03-16
5726371 Data processing apparatus outputting waveform data for sound signals with precise timings Kosuke Shiba , Koichiro Daigo , Kazuo Ogura , Jun Hosoda 1998-03-10
5691493 Multi-channel tone generation apparatus with multiple CPU's executing programs in parallel Kosuke Shiba , Koichiro Daigo , Kazuo Ogura , Jun Hosoda , Teruo Jinbo +4 more 1997-11-25
5584034 Apparatus for executing respective portions of a process by main and sub CPUS Kosuke Shiba , Koichiro Daigo , Kazuo Ogura , Jun Hosoda , Teruo Jinbo +4 more 1996-12-10
5319151 Data processing apparatus outputting waveform data in a certain interval Kosuke Shiba , Koichiro Daigo , Kazuo Ogura , Jun Hosoda 1994-06-07
5200564 Digital information processing apparatus with multiple CPUs Kosuke Shiba , Koichiro Daigo , Kazuo Ogura , Jun Hosoda , Teruo Jinbo +4 more 1993-04-06
5054358 Polyphonic electronic musical instrument — 1991-10-08
5007323 Polyphonic electronic musical instrument — 1991-04-16
