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For the Inventor, By the Inventor

Tokyo, Japan

Sony Coproration

Calculating rank
USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 30

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4 inventors (with patents filed for the assignee):

goldMedal Atsushi Toda (1 out of 192 patents)

silverMedal Toru Nagara (1 out of 41 patents)

bronzeMedal Kimihiro Saito (1 out of 83 patents)

4.  Akio Terada (1 out of 8 patents)


2 patents:

1. 8168938 - Method of manufacturing an optical member having stacked high and low refractive index layers (2012-05-01),
2. 6407976 - Method for controlling laser light power, method for data recording into optical disc, and optical disc recording apparatus (2002-06-18),
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USPTO Data Jan 1 1976 - Oct 27 2026

2 Patents

#4,375 in Tokyo

#11,147 in Japan

Tokyo, JP
Tokyo, Japan

Sony Coproration

Forward Citations = 30

4 inventors:

goldMedal Atsushi Toda (1 out of 192 patents)

silverMedal Toru Nagara (1 out of 41 patents)

bronzeMedal Kimihiro Saito (1 out of 83 patents)

4.  Akio Terada (1 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sony Coproration. Retrieved from https://idiyas.com/company/sony-coproration

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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