Patents by Inventor Yoshihiro Kodaira
Yoshihiro Kodaira 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: 9691674Abstract: Provided are a semiconductor device including a terminal, a circuit substrate, and a case body and a method for manufacturing the semiconductor device. A semiconductor device (100) includes a terminal (13), a circuit substrate (42), a case body (1), and a positioning component (21). The terminal (13) includes a first end portion (13a), a trunk portion (13b), and a second end portion (13c). The first end portion (13a) of the terminal (13) is secured to the circuit substrate (42). The case body (1) includes a main surface (1s), an opening portion (1op) on a side opposing the main surface (1s), and a groove hole (2) on the main surface (1s) side. A sidewall (5) and a through hole (4) are formed in the groove hole (2). The terminal (13) passes through the through hole (4) toward the main surface (1s) side from the opening portion (1op) side of the case body (1), and the second end portion (13c) protrudes from the main surface (1s) of the case body (1).Type: GrantFiled: February 9, 2015Date of Patent: June 27, 2017Assignee: FUJI ELECTRIC CO., LTD.Inventor: Yoshihiro Kodaira
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Publication number: 20170042051Abstract: When a nut housing member is inserted from a first opening portion into a case (terminal housing area) in a semiconductor device, first and second protrusions of the nut housing member slide on and pass through the first and second opening portions. Ultimately, the nut housing member is housed in the case (terminal housing area), with the first protrusion being in contact with a lower end of the second opening portion and the second protrusion being in contact with a lower end of the first opening portion. Even if the nut housing member is not inserted in parallel with the terminal housing area, the forefront does not hit against a first beam. Therefore, the nut housing member is inserted stably and housed reliably in the terminal housing area of the case, and the assemblability of the nut housing member with respect to the case is improved.Type: ApplicationFiled: July 1, 2016Publication date: February 9, 2017Applicant: FUJI ELECTRIC CO., LTD.Inventor: Yoshihiro KODAIRA
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Publication number: 20170018480Abstract: A control terminal 14 of a semiconductor device has a recessed portion 14c. A resin case 15 is provided with a fixing member 152 engaging with and fixing a recessed portion 14c of a control terminal 14. The fixing member 152 is constituted by a resin block portion 154 having a step portion engaging with the recessed portion 14c, a nut-housing portion 153, and a beam portion 155 integrated by linking the resin block portion 154 and the nut-housing portion 153. A resin case main body 151 to which the fixing member 152 is fixed is provided with a hollow portion enabling insertion of the resin block portion 154. The nut-housing portion 153 of the fixing member 152 and the resin block portion 154 are attached to the resin case main body 151 from one direction.Type: ApplicationFiled: September 29, 2016Publication date: January 19, 2017Inventors: Fumio SHIGETA, Yoshihiro KODAIRA
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Publication number: 20160225685Abstract: Provided are a semiconductor device including a terminal, a circuit substrate, and a case body and a method for manufacturing the semiconductor device. A semiconductor device (100) includes a terminal (13), a circuit substrate (42), a case body (1), and a positioning component (21). The terminal (13) includes a first end portion (13a), a trunk portion (13b), and a second end portion (13c). The first end portion (13a) of the terminal (13) is secured to the circuit substrate (42). The case body (1) includes a main surface (1s), an opening portion (1op) on a side opposing the main surface (1s), and a groove hole (2) on the main surface (1s) side. A sidewall (5) and a through hole (4) are formed in the groove hole (2). The terminal (13) passes through the through hole (4) toward the main surface (1s) side from the opening portion (1op) side of the case body (1), and the second end portion (13c) protrudes from the main surface (1s) of the case body (1).Type: ApplicationFiled: February 9, 2015Publication date: August 4, 2016Applicant: FUJI ELECTRIC CO., LTD.Inventor: Yoshihiro KODAIRA
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Patent number: 9171768Abstract: A semiconductor device includes an insulating substrate joined with a semiconductor chip, a case covering a surface of the insulating substrate where the semiconductor chip is joined, and a control terminal in which one end portion is electrically connected to the semiconductor chip, and another end portion passes through the case and is exposed to outside of the case. A portion of the control terminal exposed to the outside of the case includes a cut-out section where a part of the exposed portion is cut out, and a blocking section formed by bending a portion surrounded by the cut-out section and remaining on the control terminal. The blocking section contacts the case from the outside of the case and blocks a movement of the control terminal.Type: GrantFiled: September 3, 2012Date of Patent: October 27, 2015Assignee: FUJI ELECTRIC CO., LTD.Inventors: Yoshikazu Takamiya, Yoshihiro Kodaira, Kazunaga Onishi
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Patent number: 9167699Abstract: Aspects of the invention are directed to a power module including a metal base, an insulating substrate which is attached to the metal base, a semiconductor chip and a control terminal which are attached to a circuit pattern of the insulating substrate, and a resin case which is attached to the metal base. The control terminal can include a penetration portion which penetrates a cover of the resin case, an L-shaped processed portion which is connected to the penetration portion, and a connection portion which is connected to the L-shaped processed portion. A protrusion portion can be installed in a portion of the control terminal, which penetrates the cover. The protrusion portion can be in contact with a protrusion receiving portion which is configured with a front surface of the cover. The L-shaped processed portion can be in contact with a convex portion in a rear surface of the cover.Type: GrantFiled: May 13, 2013Date of Patent: October 20, 2015Assignee: FUJI ELECTRIC CO., LTD.Inventors: Yoshikazu Takamiya, Kazunaga Onishi, Yoshihiro Kodaira
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Patent number: 9136225Abstract: A method of manufacturing a semiconductor device, includes the steps of passing a control terminal through an opening of a resin case to partially expose the control terminal and covering a patterned insulating substrate with the resin case; inserting a resin block in the opening of the resin case; fitting a convex step portion formed on a side surface of the resin block into a valley formed between two projections of the control terminal; fitting a projection formed on the side surface of the resin block into a concave portion formed on a sidewall of the opening of the resin case; and fitting a projection formed on a bottom surface of the resin block into a concave portion formed in a beam portion at a bottom portion of the opening of the resin case to position and fix the control terminal.Type: GrantFiled: May 4, 2015Date of Patent: September 15, 2015Assignee: FUJI ELECTRIC CO., LTD.Inventor: Yoshihiro Kodaira
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Publication number: 20150235965Abstract: A method of manufacturing a semiconductor device, includes the steps of passing a control terminal through an opening of a resin case to partially expose the control terminal and covering a patterned insulating substrate with the resin case; inserting a resin block in the opening of the resin case; fitting a convex step portion formed on a side surface of the resin block into a valley formed between two projections of the control terminal; fitting a projection formed on the side surface of the resin block into a concave portion formed on a sidewall of the opening of the resin case; and fitting a projection formed on a bottom surface of the resin block into a concave portion formed in a beam portion at a bottom portion of the opening of the resin case to position and fix the control terminal.Type: ApplicationFiled: May 4, 2015Publication date: August 20, 2015Inventor: Yoshihiro KODAIRA
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Patent number: 9078355Abstract: A semiconductor device has a control terminal attached to a patterned insulating substrate; a first projection formed on the control terminal; a second projection formed on the control terminal; a concave formed between the first projection and the second projection; a resin case disposed to cover the patterned insulating substrate, and having an opening for passing the control terminal therethrough; a first concave portion; a beam portion disposed at the opening of the resin case; a second concave portion formed in the beam portion; a resin block inserted into the opening of the resin case and sandwiching the control terminal together with the sidewall of the opening of the resin case to fix the control terminal to the resin case; a convex step portion; a third projection formed on a side surface of the resin block; and a fourth projection thinned on a bottom surface of the resin block.Type: GrantFiled: August 24, 2012Date of Patent: July 7, 2015Assignee: FUJI ELECTRIC CO., LTD.Inventor: Yoshihiro Kodaira
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Patent number: 8941228Abstract: A semiconductor module is manufactured by bonding a resin case having a first opening through which surfaces of main circuit terminals and control terminals are exposed, onto a metal heat-dissipating substrate onto which is bonded, a conductive-patterned insulating substrate onto which are bonded, semiconductor chips, the main circuit terminals, and the control terminals; inserting into and attaching to a second opening formed on a side wall constituting a resin case, a resin body having a nut embedded therein to fix the main circuit terminals and the control terminals; and filling the resin case with a resin material. A side wall of the first opening is tapered toward the surface thereof; a tapered contact portion contacting the tapered side wall is disposed on the control terminal; and the resin body having the embedded nut fixes the control terminal having a one-footing structure that is an independent terminal.Type: GrantFiled: November 15, 2011Date of Patent: January 27, 2015Assignee: Fuji Electric Co., LtdInventor: Yoshihiro Kodaira
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Patent number: 8933554Abstract: A semiconductor device has an insulation substrate formed with a conductive pattern; an independent terminal, which is an externally leading terminal, soldered to the conductive pattern of the insulation substrate; a case disposed over the insulation substrate such that a top surface of the independent terminal is exposed; an opening provided on a side surface of the case; a nut glove inserted from the opening so as to be below the independent terminal, and fix the independent terminal; and a first projection part formed on a side surface of the nut glove, and having tapers in a frontward direction and a rearward direction of insertion of the nut glove, respectively. The rearward taper of the first projection part is pressure contacting with a sidewall surface of the opening.Type: GrantFiled: June 11, 2012Date of Patent: January 13, 2015Assignee: Fuji Electric Co., Ltd.Inventor: Yoshihiro Kodaira
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Publication number: 20140210067Abstract: A semiconductor device includes an insulating substrate joined with a semiconductor chip, a case covering a surface of the insulating substrate where the semiconductor chip is joined, and a control terminal in which one end portion is electrically connected to the semiconductor chip, and another end portion passes through the case and is exposed to outside of the case. A portion of the control terminal exposed to the outside of the case includes a cut-out section where a part of the exposed portion is cut out, and a blocking section formed by bending a portion surrounded by the cut-out section and remaining on the control terminal. The blocking section contacts the case from the outside of the case and blocks a movement of the control terminal.Type: ApplicationFiled: September 3, 2012Publication date: July 31, 2014Applicant: FUJI ELECTRIC CO., LTD.Inventors: Yoshikazu Takamiya, Yoshihiro Kodaira, Kazunaga Onishi
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Publication number: 20140168922Abstract: A semiconductor device has a control terminal attached to a patterned insulating substrate; a first projection formed on the control terminal; a second projection formed on the control terminal; a concave formed between the first projection and the second projection; a resin case disposed to cover the patterned insulating substrate, and having an opening for passing the control terminal therethrough; a first concave portion; a beam portion disposed at the opening of the resin case; a second concave portion formed in the beam portion; a resin block inserted into the opening of the resin case and sandwiching the control terminal together with the sidewall of the opening of the resin case to fix the control terminal to the resin case; a convex step portion; a third projection formed on a side surface of the resin block; and a fourth projection thinned on a bottom surface of the resin block.Type: ApplicationFiled: August 24, 2012Publication date: June 19, 2014Applicant: FUJI ELECTRIC CO., LTD.Inventor: Yoshihiro Kodaira
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Patent number: 8664765Abstract: A semiconductor device includes a substrate, an insulating substrate mounted on the substrate, a metal pattern formed on the insulating substrate, an electronic part mounted on the metal pattern across a bond, and a wire member, separate from a wiring wire, which contains a material repellent to the bond and is formed on the metal pattern and around the electronic part.Type: GrantFiled: September 8, 2011Date of Patent: March 4, 2014Assignee: Fuji Electric Co., Ltd.Inventors: Kazunaga Onishi, Yoshikazu Takamiya, Takaaki Funakoshi, Yoshihiro Kodaira
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Publication number: 20130334676Abstract: A semiconductor module is manufactured by bonding a resin case having a first opening through which surfaces of main circuit terminals and control terminals are exposed, onto a metal heat-dissipating substrate onto which is bonded, a conductive-patterned insulating substrate onto which are bonded, semiconductor chips, the main circuit terminals, and the control terminals; inserting into and attaching to a second opening formed on a side wall constituting a resin case, a resin body having a nut embedded therein to fix the main circuit terminals and the control terminals; and filling the resin case with a resin material. A side wall of the first opening is tapered toward the surface thereof; a tapered contact portion contacting the tapered side wall is disposed on the control terminal; and the resin body having the embedded nut fixes the control terminal having a one-footing structure that is an independent terminal.Type: ApplicationFiled: November 15, 2011Publication date: December 19, 2013Applicant: FUJI ELECTRIC CO., LTD.Inventor: Yoshihiro Kodaira
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Publication number: 20130285231Abstract: A semiconductor device has an insulation substrate formed with a conductive pattern; an independent terminal, which is an externally leading terminal, soldered to the conductive pattern of the insulation substrate; a case disposed over the insulation substrate such that a top surface of the independent terminal is exposed; an opening provided on a side surface of the case; a nut glove inserted from the opening so as to be below the independent terminal, and fix the independent terminal; and a first projection part formed on a side surface of the nut glove, and having tapers in a frontward direction and a rearward direction of insertion of the nut glove, respectively. The rearward taper of the first projection part is pressure contacting with a sidewall surface of the opening.Type: ApplicationFiled: June 11, 2012Publication date: October 31, 2013Applicant: FUJI ELECTRIC CO., LTDInventor: Yoshihiro Kodaira
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Publication number: 20130250535Abstract: Aspects of the invention are directed to a power module including a metal base, an insulating substrate which is attached to the metal base, a semiconductor chip and a control terminal which are attached to a circuit pattern of the insulating substrate, and a resin case which is attached to the metal base. The control terminal can include a penetration portion which penetrates a cover of the resin case, an L-shaped processed portion which is connected to the penetration portion, and a connection portion which is connected to the L-shaped processed portion. A protrusion portion can be installed in a portion of the control terminal, which penetrates the cover. The protrusion portion can be in contact with a protrusion receiving portion which is configured with a front surface of the cover. The L-shaped processed portion can be in contact with a convex portion in a rear surface of the cover.Type: ApplicationFiled: May 13, 2013Publication date: September 26, 2013Applicant: FUJI ELECTRIC CO., LTD.Inventors: Yoshikazu TAKAMIYA, Kazunaga ONISHI, Yoshihiro KODAIRA
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Publication number: 20130020725Abstract: A semiconductor device includes a substrate, an insulating substrate mounted on the substrate, a metal pattern formed on the insulating substrate, an electronic part mounted on the metal pattern across a bond, and a wire member, separate from a wiring wire, which contains a material repellent to the bond and is formed on the metal pattern and around the electronic part.Type: ApplicationFiled: September 8, 2011Publication date: January 24, 2013Applicant: FUJI ELECTRIC CO., LTD.Inventors: Kazunaga Onishi, Yoshikazu Takamiya, Takaaki Funakoshi, Yoshihiro Kodaira
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Patent number: 5902244Abstract: An ultrasonic diagnosis apparatus comprises a probe having a plurality of transducers for performing transmission/reception of ultrasonic waves; a selection circuit for sequentially selecting the transducers for performing transmission/reception of ultrasonic waves; and an A/D converter for converting a reception waveform signal from the transducer selected by the selection circuit into a digital waveform signal. The apparatus also includes a memory for storing the digital waveform signal converted by the A/D converter in correspondence with the selected transducer; and a read control circuit having a wavefront locus address generator for generating a wavefront locus data corresponding to time-of-flight data between each point in an ultrasonic scanning region and respective transducers to synthesize a wavefront converging on a point in the ultrasonic scanning region (including points which are not located on lines normal to the radiating surfaces of the transducers).Type: GrantFiled: December 22, 1997Date of Patent: May 11, 1999Assignee: Olympus Optical Co., Ltd.Inventors: Hideyuki Kobayashi, Atsushi Osawa, Yoshihiro Kodaira, Masahiko Gondo