Sonobe; Koji

Patent Applications and Registrations

Patent applications and USPTO patent grants for Sonobe; Koji.The latest application filed is for "controller of switching power supply apparatus".

Company Profile

2.16.14

Sonobe; Koji - Matsumoto JP
SONOBE; Koji - Matsumoto-city JP
SONOBE; Koji - Matsumoto-shi JP
Sonobe; Koji - Nagano JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Controller of switching power supply apparatus Grant 11,411,498 - Sonobe August 9, 2	2022-08-09
Switching power supply control circuit with bottom point detection Grant 11,005,373 - Sonobe , et al. May 11, 2	2021-05-11
Controller Of Switching Power Supply Apparatus App 20200358360 - SONOBE; Koji	2020-11-12
LED drive circuit Grant 10,512,137 - Sonobe Dec	2019-12-17
Switching power supply device Grant 10,277,134 - Sonobe	2019-04-30
Switching Power Supply Control Circuit And Switching Power Supply Apparatus App 20190068064 - SONOBE; Koji ; et al.	2019-02-28
Switching Power Supply Device App 20170222565 - SONOBE; Koji	2017-08-03
Quasi-resonant switching power supply Grant 9,627,977 - Sonobe April 18, 2	2017-04-18
Junction field effect transistor, integrated circuit for switching power supply, and switching power supply Grant 9,461,115 - Saito , et al. October 4, 2	2016-10-04
Switching power source device Grant 8,879,281 - Sonobe November 4, 2	2014-11-04
Quasi-resonant Switching Power Supply App 20140177286 - SONOBE; Koji	2014-06-26
Switching Power Source Device App 20140078787 - SONOBE; Koji	2014-03-20
Led Drive Circuit App 20140062333 - SONOBE; Koji	2014-03-06
Switching power source device and switching power source control circuit Grant 8,411,469 - Chen , et al. April 2, 2	2013-04-02
Junction Field Effect Transistor, Integrated Circuit For Switching Power Supply, And Switching Power Supply App 20120319177 - SAITO; Masaru ; et al.	2012-12-20
Junction field effect transistor, integrated circuit for switching power supply, and switching power supply Grant 8,283,705 - Saito , et al. October 9, 2	2012-10-09
Switching power supply device and switching power supply control circuit Grant 8,243,473 - Chen , et al. August 14, 2	2012-08-14
Switching power supply control circuit Grant 8,098,501 - Sonobe January 17, 2	2012-01-17
Junction Field Effect Transistor, Integrated Circuit For Switching Power Supply, And Switching Power Supply App 20110228575 - SAITO; Masaru ; et al.	2011-09-22
Junction field effect transistor, integrated circuit for switching power supply, and switching power supply Grant 7,982,248 - Saito , et al. July 19, 2	2011-07-19
Semiconductor device for switching power supply control, startup circuit, and startup method for switching power supply device Grant 7,948,780 - Sonobe May 24, 2	2011-05-24
Switching power source device, switching power source control circuit, and switching power source device control method Grant 7,859,860 - Chen , et al. December 28, 2	2010-12-28
Switching Power Supply Device And Switching Power Supply Control Circuit App 20100172157 - CHEN; Jian ; et al.	2010-07-08
Switching power source device and switching power source control circuit App 20100142229 - Chen; Jian ; et al.	2010-06-10
Switching Power Supply Control Circuit App 20100135050 - SONOBE; Koji	2010-06-03
Switching power source device, switching power source control circuit, and switching power source device control method App 20100067262 - Chen; Jian ; et al.	2010-03-18
Semiconductor Device For Switching Power Supply Control, Startup Circuit, And Startup Method For Switching Power Supply Device App 20090237965 - SONOBE; Koji	2009-09-24
Junction Field Effect Transistor, Integrated Circuit For Switching Power Supply, And Switching Power Supply App 20070221963 - SAITO; Masaru ; et al.	2007-09-27

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