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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
KAWAI MUSICAL INSTRUMENTS MANUFACTURING CO LTD	200 TERAJIMA-CHO NAKA-KU HAMAMATSU-SHI SHIZUOKA 4308665

International Classification(s)

• G09B:EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCE....
• G10H:ELECTROPHONIC MUSICAL INSTRUMENTS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Takano, Junichi	Hamamatsu, JP	34	181
# of filed Patents : 34 Total Citations : 181

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Patent Citation Ranking

• 22 Citation Count
• G09B Class

• 81.88 % this patent is cited more than
• 27 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 5852252

Chord progression input/modification device

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Abstract

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In a chord progression input/modification device, when a key and a single or two successive reference chords are designated by a user, available chords are acquired and displayed. Any one of the available chords can be used, in consonance with musical theory, to follow or substitute for the single reference chord, or to be inserted between the two reference chords for generating a modified chord progression. The chord progression modification device may be installed in an electronic musical instrument.

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Description

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