Patents by Inventor Yoshitsugu Watanabe
Yoshitsugu Watanabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11283146Abstract: Disclosed herein is a non-reciprocal circuit element that includes a substrate having lower and upper surfaces, a magnetic metal layer provided on the lower surface of the substrate, a magnetic rotator provided on the upper surface of the substrate, and a permanent magnet for applying a magnetic field to the magnetic rotator. The magnetic metal layer includes a lower yoke provided at a position overlapping the magnetic rotator in a plan view and a plurality of terminal electrodes connected to the magnetic rotator.Type: GrantFiled: September 9, 2020Date of Patent: March 22, 2022Assignee: TDK CORPORATIONInventor: Yoshitsugu Watanabe
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Patent number: 11276908Abstract: Disclosed herein is a non-reciprocal circuit element that includes a magnetic rotator, a permanent magnet for applying a magnetic field to the magnetic rotator, a lower yoke, and an upper yoke fixed to the lower yoke and housing therein the magnetic rotator and the permanent magnet. The upper yoke includes a top plate part that covers the magnetic rotator and the permanent magnet from an upper side, and first and second side plate parts that face each other and cover the magnetic rotator and the permanent magnet from a side. The first and second side plate parts have first and second plate spring parts that sandwich the permanent magnet and bias it.Type: GrantFiled: September 9, 2020Date of Patent: March 15, 2022Assignee: TDK CORPORATIONInventor: Yoshitsugu Watanabe
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Publication number: 20210091445Abstract: Disclosed herein is a non-reciprocal circuit element that includes a magnetic rotator, a permanent magnet for applying a magnetic field to the magnetic rotator, a lower yoke, and an upper yoke fixed to the lower yoke and housing therein the magnetic rotator and the permanent magnet. The upper yoke includes a top plate part that covers the magnetic rotator and the permanent magnet from an upper side, and first and second side plate parts that face each other and cover the magnetic rotator and the permanent magnet from a side. The first and second side plate parts have first and second plate spring parts that sandwich the permanent magnet and bias it.Type: ApplicationFiled: September 9, 2020Publication date: March 25, 2021Applicant: TDK CORPORATIONInventor: Yoshitsugu Watanabe
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Publication number: 20210091444Abstract: Disclosed herein is a non-reciprocal circuit element that includes a substrate having lower and upper surfaces, a magnetic metal layer provided on the lower surface of the substrate, a magnetic rotator provided on the upper surface of the substrate, and a permanent magnet for applying a magnetic field to the magnetic rotator. The magnetic metal layer includes a lower yoke provided at a position overlapping the magnetic rotator in a plan view and a plurality of terminal electrodes connected to the magnetic rotator.Type: ApplicationFiled: September 9, 2020Publication date: March 25, 2021Applicant: TDK CORPORATIONInventor: Yoshitsugu WATANABE
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Patent number: 7382209Abstract: There is provided a non-reciprocal circuit device which is suitable for a reduction in height, an increase in a mechanical securing strength and a reduction in a number of components, and has a improvement in the yield of assembly, a sufficiently reduction in the man-hour and cost for assembly. A gyromagnetic component assembly 10 is accommodated in a holder 30. A support member 40 has a holder insertion hole 44 which is opened on at least one surface 411. A holder 30 has a bottom outer surface 32 inserted in the holder insertion hole 44.Type: GrantFiled: September 29, 2005Date of Patent: June 3, 2008Assignee: TDK CorporationInventor: Yoshitsugu Watanabe
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Publication number: 20060226925Abstract: There is provided a non-reciprocal circuit device which is suitable for a reduction in height, an increase in a mechanical securing strength and a reduction in a number of components, and has a improvement in the yield of assembly, a sufficiently reduction in the man-hour and cost for assembly. A gyromagnetic component assembly 10 is accommodated in a holder 30. A support member 40 has a holder insertion hole 44 which is opened on at least one surface 411. A holder 30 has a bottom outer surface 32 inserted in the holder insertion hole 44.Type: ApplicationFiled: September 29, 2005Publication date: October 12, 2006Applicant: TDK CorporationInventor: Yoshitsugu Watanabe
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Patent number: 6955553Abstract: The present invention is directed to a non-reciprocal device which easily secures the same planarity in the bottom surfaces of the external terminals and the case bottom surface. The case 7 houses a circuit board 1 and a gyromagnetic component 2, such that the lower surface of the circuit board 1 faces the internal surface 711 of the bottom portion 71. A plurality of side walls 72 are arranged with a space 722 therebetween on the periphery of the bottom portion 71. External-terminal forming portions 11 to 13 of the circuit board 1 each protrude from the external side surface of the body 10 and are led to the outside of the case 7 through the space 722. The bottom surfaces of the thick portions 14 of the external-terminal forming portions 11 to 13 are formed on the same plane as the outer bottom surface 712 of the case 7. Connection electrodes 151 to 153 for center conductors are connected to the terminal portions 311 to 331 of the center conductors 31 to 33 inside the case 7.Type: GrantFiled: December 21, 2004Date of Patent: October 18, 2005Assignee: TDK CorporationInventor: Yoshitsugu Watanabe
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Publication number: 20050170679Abstract: The present invention is directed to a non-reciprocal device which easily secures the same planarity in the bottom surfaces of the external terminals and the case bottom surface. The case 7 houses a circuit board 1 and a gyromagnetic component 2, such that the lower surface of the circuit board 1 faces the internal surface 711 of the bottom portion 71. A plurality of side walls 72 are arranged with a space 722 therebetween on the periphery of the bottom portion 71. External-terminal forming portions 11 to 13 of the circuit board 1 each protrude from the external side surface of the body 10 and are led to the outside of the case 7 through the space 722. The bottom surfaces of the thick portions 14 of the external-terminal forming portions 11 to 13 are formed on the same plane as the outer bottom surface 712 of the case 7. Connection electrodes 151 to 153 for center conductors are connected to the terminal portions 311 to 331 of the center conductors 31 to 33 inside the case 7.Type: ApplicationFiled: December 21, 2004Publication date: August 4, 2005Applicant: TDK CorporationInventor: Yoshitsugu Watanabe
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Patent number: 4459743Abstract: An automatic mounting apparatus for electrical chip components comprises a parts feeder including a plurality of hoppers with the chip components therein, and a parts applicator including means for picking up the chip component and movable in orthogonal directions in programmed sequence to transport the chip components successively from the parts hopper to a printed circuit board for automatic mounting thereon within a minimum time.Type: GrantFiled: December 3, 1981Date of Patent: July 17, 1984Assignee: J. Osawa Camera Sales Co., Ltd.Inventors: Yoshitsugu Watanabe, Katsutoshi Koenuma
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Patent number: 3989892Abstract: A line concentrator for a time division data switching exchange. Asynchronous and synchronous data signals generated at asynchronous and synchronous data terminals are subjected to known multi-point and synchronous sampling to become a train of bit-multiplexed first asynchronous and synchronous data channel signals. Responsive to a train of bit-interleaved read-in pulse groups timed relative to the respective synchronous data signals, an arithmetic unit stores the data channel signals in an octet memory according to the asynchronous and synchronous data terminals. Responsive to a train of read-out pulses appearing for the respective data terminals, the arithmetic unit reproduces groups of uninterleaved data channel signals for each data terminal and composes the reproduced data channel signals into a train of second asynchronous and synchronous data channel signals given by a common and uninterleaved bit format.Type: GrantFiled: July 3, 1975Date of Patent: November 2, 1976Assignees: Nippon Telegraph and Telephone Public Corporation, Nippon Electric Company, Ltd., Oki Electric Industry Company, Ltd., Hitachi, Ltd., Fujitsu Ltd.Inventors: Shinichiro Yoshida, Yoshitsugu Watanabe, Yuji Hayano, Susumu Ohara, Takuhito Kojima
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Patent number: D330730Type: GrantFiled: March 8, 1991Date of Patent: November 3, 1992Assignee: Sony CorporationInventor: Yoshitsugu Watanabe