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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of billing for information services in conjunction with util...
Patent number
6,018,726
Issue date
Jan 25, 2000
Ricos Co., Ltd.
Mihoji Tsumura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information service billing system using radio communications
Patent number
5,729,740
Issue date
Mar 17, 1998
Ricos Co., Ltd.
Mihoji Tsumura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Computer game device
Patent number
5,547,202
Issue date
Aug 20, 1996
Ricos Co., Ltd.
Mihoji Tsumura
G07 - CHECKING-DEVICES
Information
Patent Grant
Communications apparatus for scrambling data and synchronizing a pl...
Patent number
5,526,435
Issue date
Jun 11, 1996
Ricos Co., Ltd.
Mihoji Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Backing chorus reproducing device in a karaoke device
Patent number
5,499,922
Issue date
Mar 19, 1996
Ricoh Co., Ltd.
Toshihiko Umeda
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Karaoke authoring apparatus
Patent number
5,453,570
Issue date
Sep 26, 1995
Ricoh Co., Ltd.
Toshihiko Umeda
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Data and speech transmission device
Patent number
5,365,576
Issue date
Nov 15, 1994
Ricos Co., Ltd.
Mihoji Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device for bidirectional communication on a telephone line
Patent number
5,357,505
Issue date
Oct 18, 1994
Ricos Co., Ltd.
Mihoji Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device for the transmission of data by telephone line
Patent number
5,353,337
Issue date
Oct 4, 1994
Ricos Co., Ltd.
Mihoji Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Information input/output controller for telephone lines
Patent number
5,299,258
Issue date
Mar 29, 1994
Ricos Co., Ltd.
Mihoji Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Backing chorus mixing device and karaoke system incorporating said...
Patent number
5,294,746
Issue date
Mar 15, 1994
Ricos Co., Ltd.
Mihoji Tsumura
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Distributed telephone conference control device
Patent number
5,291,548
Issue date
Mar 1, 1994
Ricos Co., Ltd.
Mihoji Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Animation image composition and display device
Patent number
5,262,765
Issue date
Nov 16, 1993
Ricos Co., Ltd.
Mihoji Tsumura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Karaoke music selection device
Patent number
5,250,745
Issue date
Oct 5, 1993
Ricos Co., Ltd.
Mihoji Tsumura
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Karaoke music reproduction device
Patent number
5,250,747
Issue date
Oct 5, 1993
Ricos Co., Ltd.
Mihoji Tsumura
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Musical climax display device
Patent number
5,247,127
Issue date
Sep 21, 1993
Ricos Co., Ltd.
Mihoji Tsumura
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Music reproduction device for restarting a song at selected positions
Patent number
5,231,239
Issue date
Jul 27, 1993
Ricos Co., Ltd.
Mihoji Tsumura
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Vocal display device
Patent number
5,208,413
Issue date
May 4, 1993
Ricos Co., Ltd.
Mihoji Tsumura
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Karaoke lyric position display device
Patent number
5,194,683
Issue date
Mar 16, 1993
Ricos Co., Ltd.
Mihoji Tsumura
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Automatic billing system controller
Patent number
5,179,584
Issue date
Jan 12, 1993
Ricos Co., Ltd.
Mihoji Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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last 30 trademarks