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Tsutomu Nonaka
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Tokyo-to, JP
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last 30 patents
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Patent Grant
Circuit device, sound reproduction device, and electronic apparatus
Patent number
11,647,331
Issue date
May 9, 2023
Seiko Epson Corporation
Takao Katayama
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
AUDIO MIXING DEVICE AND ELECTRONIC DEVICE
Publication number
20240163625
Publication date
May 16, 2024
SEIKO EPSON CORPORATION
Takao Katayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Semiconductor Device And Electronic Apparatus
Publication number
20240113674
Publication date
Apr 4, 2024
SEIKO EPSON CORPORATION
Takao KATAYAMA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
AUDIO MIXING DEVICE AND ELECTRONIC DEVICE
Publication number
20240088855
Publication date
Mar 14, 2024
SEIKO EPSON CORPORATION
Takao Katayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor Device And Electronic Apparatus
Publication number
20240048414
Publication date
Feb 8, 2024
SEIKO EPSON CORPORATION
Takao KATAYAMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Semiconductor Device And Electronic Apparatus
Publication number
20240040308
Publication date
Feb 1, 2024
SEIKO EPSON CORPORATION
Takao KATAYAMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AUDIO MIXING DEVICE AND ELECTRONIC DEVICE
Publication number
20220417688
Publication date
Dec 29, 2022
SEIKO EPSON CORPORATION
Takao Katayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CIRCUIT DEVICE, SOUND REPRODUCTION DEVICE, AND ELECTRONIC APPARATUS
Publication number
20210127206
Publication date
Apr 29, 2021
SEIKO EPSON CORPORATION
Takao Katayama
G06 - COMPUTING CALCULATING COUNTING