Patents by Inventor Seiichi Yokoyama
Seiichi Yokoyama 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: 7615792Abstract: Light-emitting devices capable of preventing separation or alteration of a first electrode to obtain high performance, methods of manufacturing the light-emitting device, and display units are provided. A first electrode as an anode, an insulating film, an organic layer including a light-emitting layer, and a second electrode as a cathode are laminated in this order on a substrate with a planarizing layer as a base layer in between. The first electrode has a structure in which an adhesive layer, a reflective layer and a barrier layer is laminated in this order from the substrate. Alteration of the reflective layer can be prevented by the barrier layer, and the reflective layer can be prevented from being separated from the planarizing layer by the adhesive layer. The first electrode is formed through forming the adhesive layer, the reflective layer and the barrier layer on the planarizing layer, and then patterning them in order from the barrier layer.Type: GrantFiled: January 10, 2007Date of Patent: November 10, 2009Assignee: Sony CorporationInventors: Seiichi Yokoyama, Koji Hanawa, Takanori Shibasaki, Takashi Hirano
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Patent number: 7544552Abstract: A method for manufacturing a junction semiconductor device, having a step for forming a first high-resistance layer, a step for forming a channel-doped layer, a step for forming a second high-resistance layer, a step for forming a low-resistance layer of a first conductive type that acts as a source region, a step for performing partial etching to a midway depth of the second high-resistance layer and the low-resistance layer, a step for forming a gate region below the portion etched in the etching step, and a step for forming a protective film on the surface of the region between the gate region and the source region. A gate region is formed using relatively low energy ion implantation in the surface that has been etched in advance to a height that is between the lower surface of the source area and the upper surface of the channel-doped layer.Type: GrantFiled: March 23, 2006Date of Patent: June 9, 2009Assignees: Honda Motor Co., Ltd., Shindengen Electric Manufacturing Co., Ltd.Inventors: Ken-ichi Nonaka, Hideki Hashimoto, Seiichi Yokoyama, Kensuke Iwanaga, Yoshimitsu Saito, Hiroaki Iwakuro, Masaaki Shimizu, Yusuke Fukuda, Koichi Nishikawa, Yusuke Maeyama
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Publication number: 20090004790Abstract: A method for manufacturing a junction semiconductor device having a drain region including a low-resistance layer of a first conductive type formed on one surface of a semiconductor crystal, a source region including a low-resistance layer of a first conductive type formed on the other surface of the semiconductor crystal, a gate region of a second conductive type formed on the periphery of the source region, a high-resistance layer of a first conductive type between the source region and the drain region, and a recombination-inhibiting semiconductor layer of a second conductive type provided in the vicinity of the surface of the semiconductor crystal between the gate region and the source region.Type: ApplicationFiled: September 3, 2008Publication date: January 1, 2009Inventors: Ken-ichi NONAKA, Hideki Hashimoto, Seiichi Yokoyama, Kensuke Iwanaga, Yoshimitsu Saito
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Patent number: 7449734Abstract: A junction semiconductor device having a drain region including a low-resistance layer of a first conductive type formed on one surface of a semiconductor crystal, a source region including a low-resistance layer of a first conductive type formed on the other surface of the semiconductor crystal, a gate region of a second conductive type formed on the periphery of the source region, a high-resistance layer of a first conductive type between the source region and the drain region, and a recombination-inhibiting semiconductor layer of a second conductive type provided in the vicinity of the surface of the semiconductor crystal between the gate region and the source region.Type: GrantFiled: March 23, 2006Date of Patent: November 11, 2008Assignee: Honda Motor Co., Ltd.Inventors: Ken-ichi Nonaka, Hideki Hashimoto, Seiichi Yokoyama, Kensuke Iwanaga, Yoshimitsu Saito
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Publication number: 20080052901Abstract: A method of manufacturing a semiconductor device, includes increasing adherence between a susceptor as a heating element, and a semiconductor substrate disposed on the susceptor, by using an adherence increasing mechanism, or increasing heat transmitted to a semiconductor substrate, which is disposed on a susceptor as a heating element, by using a transmitted-heat increasing mechanism; and heating the semiconductor substrate to have a predetermined temperature by heating the susceptor. The adherence increasing mechanism may include the susceptor and one of a heavy-weight stone disposed on the semiconductor substrate, a cap disposed on the semiconductor substrate and engaged with the susceptor, and an adhesive layer provided between the susceptor and the semiconductor substrate. The transmitted-heat increasing mechanism may include the susceptor and small pieces which are disposed on the semiconductor substrate and have radiated-light absorption ability.Type: ApplicationFiled: August 13, 2007Publication date: March 6, 2008Inventors: Koichi Nishikawa, Masaaki Shimizu, Kenichi Nonaka, Seiichi Yokoyama, Hideki Hashimoto
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Publication number: 20070279460Abstract: A liquid discharge apparatus includes a nozzle, a pressure chamber, a liquid supply chamber, a liquid supply passage, and a fluid resistance changing mechanism. A liquid pressure in the pressure chamber is configured to be changed to discharge liquid from the nozzle. The liquid supply passage extends in a connecting direction to connect the liquid supply chamber and the pressure chamber. The fluid resistance changing mechanism is configured to change a fluid resistance of the liquid supply passage.Type: ApplicationFiled: May 22, 2007Publication date: December 6, 2007Applicant: Mimaki Engineering Co., Ltd.Inventors: Seiichi YOKOYAMA, Kazutomo Seki
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Publication number: 20070252878Abstract: A liquid discharge apparatus includes a pressure chamber which is connected to a nozzle via a nozzle passage and in which a liquid pressure is configured to be changed to discharge liquid from the nozzle. A liquid supply passage connects a liquid supply chamber and the pressure chamber. A fluid resistance providing mechanism is provided in at least one of the liquid supply passage and the nozzle passage. A first fluid resistance of the fluid resistance providing mechanism along a first flow direction from the liquid supply chamber toward the nozzle is smaller than a second fluid resistance of the fluid resistance providing mechanism along a second flow direction from the nozzle toward the liquid supply chamber.Type: ApplicationFiled: April 10, 2007Publication date: November 1, 2007Applicant: Mimaki Engineering Co., Ltd.Inventors: Seiichi Yokoyama, Tomokazu Seki
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Publication number: 20070240814Abstract: There is provided a green sheet through-hole machining apparatus, and a through-hole machining method, that allows deterioration of positional precision of through-holes after perforation to be readily prevented. A releasing plate made of a metallic thin plate is removably set on an upper face of a lower base. Then, a green sheet is interposed between the lower and upper bases and the upper base is pressed by a pressurizing roller to press the green sheet toward the releasing plate. Then, the green sheet is punched by the projections to perforate the through-holes. After that, the green sheet is removed from the lower base together with the releasing plate.Type: ApplicationFiled: April 5, 2007Publication date: October 18, 2007Inventors: Yuji Sakuma, Seiichi Yokoyama
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Publication number: 20070190887Abstract: Disclosed is a display apparatus, and method of making same, including a plurality of lower electrodes patterned on a substrate on the basis of each pixel, an auxiliary wiring composed of the same layer as the lower electrodes and arranged in the state of being insulated from the lower electrodes, an insulating film formed on the substrate and provided with pixel openings for exposing central portions of the lower electrodes and connection holes reaching the auxiliary wiring, organic layers so patterned as to cover bottom portions of the pixel openings and to have end portions partly overlapping on each other between the adjacent pixels, and an upper electrode so formed as to cover the organic layers and to be connected to the auxiliary wiring through the connection holes between the organic layers.Type: ApplicationFiled: April 23, 2007Publication date: August 16, 2007Applicant: SONY CORPORATIONInventors: Chiyoko Sato, Jiro Yamada, Takashi Hirano, Seiichi Yokoyama
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Patent number: 7250634Abstract: Light-emitting devices capable of preventing separation or alteration of a first electrode to obtain high performance, methods of manufacturing the light-emitting device, and display units are provided. A first electrode as an anode, an insulating film, an organic layer including a light-emitting layer, and a second electrode as a cathode are laminated in this order on a substrate with a planarizing layer as a base layer in between. The first electrode has a structure in which an adhesive layer, a reflective layer and a barrier layer is laminated in this order from the substrate. Alteration of the reflective layer can be prevented by the barrier layer, and the reflective layer can be prevented from being separated from the planarizing layer by the adhesive layer. The first electrode is formed through forming the adhesive layer, the reflective layer and the barrier layer on the planarizing layer, and then patterning them in order from the barrier layer.Type: GrantFiled: March 19, 2004Date of Patent: July 31, 2007Assignee: Sony CorporationInventors: Seiichi Yokoyama, Koji Hanawa, Takanori Shibasaki, Takashi Hirano
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Patent number: 7245341Abstract: A laminated structure which can reduce defect by preventing deposition failure or holes of an insulating film, manufacturing method, and a display unit that employ same are provided. The laminated structure as an anode for organic light-emitting devices is provided on a flat surface of a substrate. In the laminated structure, an adhesive layer made of ITO, a reflective layer made of silver or an alloy containing silver, and a barrier layer made of ITO are layered in this order from the substrate side. A cross sectional shape of the laminated structure in the laminated direction is a forward tapered shape. A sidewall face of the adhesive layer, the reflective layer, and the barrier layer is totally covered by an insulating film, and deposition failure or holes of the insulating film is prevented. A taper angle made by the sidewall face and the flat surface is preferably from about 10° to about 70°.Type: GrantFiled: May 26, 2004Date of Patent: July 17, 2007Assignee: Sony CorporationInventor: Seiichi Yokoyama
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Patent number: 7224115Abstract: Disclosed is a display apparatus including a plurality of lower electrodes patterned on a substrate on the basis of each pixel, an auxiliary wiring composed of the same layer as the lower electrodes and arranged in the state of being insulated from the lower electrodes, an insulating film formed on the substrate and provided with pixel openings for exposing central portions of the lower electrodes and connection holes reaching the auxiliary wiring, organic layers so patterned as to cover bottom portions of the pixel openings and to have end portions partly overlapping on each other between the adjacent pixels, and an upper electrode so formed as to cover the organic layers and to be connected to the auxiliary wiring through the connection holes between the organic layers. Also disclosed is a method of manufacturing the display apparatus.Type: GrantFiled: December 8, 2003Date of Patent: May 29, 2007Assignee: Sony CorporationInventors: Chiyoko Sato, Jiro Yamada, Takashi Hirano, Seiichi Yokoyama
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Publication number: 20070114526Abstract: Light-emitting devices capable of preventing separation or alteration of a first electrode to obtain high performance, methods of manufacturing the light-emitting device, and display units are provided. A first electrode as an anode, an insulating film, an organic layer including a light-emitting layer, and a second electrode as a cathode are laminated in this order on a substrate with a planarizing layer as a base layer in between. The first electrode has a structure in which an adhesive layer, a reflective layer and a barrier layer is laminated in this order from the substrate. Alteration of the reflective layer can be prevented by the barrier layer, and the reflective layer can be prevented from being separated from the planarizing layer by the adhesive layer. The first electrode is formed through forming the adhesive layer, the reflective layer and the barrier layer on the planarizing layer, and then patterning them in order from the barrier layer.Type: ApplicationFiled: January 10, 2007Publication date: May 24, 2007Applicant: Sony CorporationInventors: Seiichi Yokoyama, Koji Hanawa, Takanori Shibasaki, Takashi Hirano
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Publication number: 20070102737Abstract: A display unit capable of being simply designed and manufactured by using more simplified light emitting device structure while capable of high definition display and display with superior color reproducibility and a manufacturing method thereof are provided. The display unit is a display unit (1), wherein a plurality of organic EL devices (3B), (3G), and (3R), in which a function layer (6) including a light emitting layer (11) is sandwiched between a lower electrode (4) made of a light reflective material and a semi-transmissive upper electrode (7), and which has a resonator structure in which light h emitted in the light emitting layer (11) is resonated using a space between the lower electrode (4) and the upper electrode (7) as a resonant section (15) and is extracted from the upper electrode (7) side are arranged on a substrate (2).Type: ApplicationFiled: September 17, 2004Publication date: May 10, 2007Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
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Publication number: 20070063645Abstract: A laminated structure which can reduce defect by preventing deposition failure or holes of an insulating film, manufacturing method, and a display unit that employ same are provided. The laminated structure as an anode for organic light-emitting devices is provided on a flat surface of a substrate. In the laminated structure, an adhesive layer made of ITO, a reflective layer made of silver or an alloy containing silver, and a barrier layer made of ITO are layered in this order from the substrate side. A cross sectional shape of the laminated structure in the laminated direction is a forward tapered shape. A sidewall face of the adhesive layer, the reflective layer, and the barrier layer is totally covered by an insulating film, and deposition failure or holes of the insulating film is prevented. A taper angle made by the sidewall face and the flat surface is preferably from about 10° to about 70°.Type: ApplicationFiled: October 16, 2006Publication date: March 22, 2007Applicant: c/o Sony CorporationInventor: Seiichi Yokoyama
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Publication number: 20070032002Abstract: A method for manufacturing an ion implantation mask is disclosed which includes the steps of: forming an oxide film as a protective film over the entire surface of a semiconductor substrate; forming a thin metal film over the oxide film; and forming an ion-inhibiting layer composed of an ion-inhibiting metal over the thin metal film. The obtained ion implantation mask is used to form a deeper selectively electroconductive region.Type: ApplicationFiled: August 1, 2006Publication date: February 8, 2007Applicants: HONDA MOTOR CO., LTD., Shindengen Electric Manufacturing Co., Ltd.Inventors: Ken-ichi Nonaka, Hideki Hashimoto, Seiichi Yokoyama, Hiroaki Iwakuro, Koichi Nishikawa, Masaaki Shimizu, Yusuke Fukuda
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Publication number: 20060216879Abstract: A method for manufacturing a junction semiconductor device, having a step for forming a first high-resistance layer, a step for forming a channel-doped layer, a step for forming a second high-resistance layer, a step for forming a low-resistance layer of a first conductive type that acts as a source region, a step for performing partial etching to a midway depth of the second high-resistance layer and the low-resistance layer, a step for forming a gate region below the portion etched in the etching step, and a step for forming a protective film on the surface of the region between the gate region and the source region. A gate region is formed using relatively low energy ion implantation in the surface that has been etched in advance to a height that is between the lower surface of the source area and the upper surface of the channel-doped layer.Type: ApplicationFiled: March 23, 2006Publication date: September 28, 2006Inventors: Ken-ichi Nonaka, Hideki Hashimoto, Seiichi Yokoyama, Kensuke Iwanaga, Yoshimitsu Saito, Hiroaki Iwakuro, Masaaki Shimizu, Yusuke Fukuda, Koichi Nishikawa, Yusuke Maeyama
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Publication number: 20060214200Abstract: A junction semiconductor device having a drain region comprising a low-resistance layer of a first conductive type formed on one surface of a semiconductor crystal, a source region comprising a low-resistance layer of a first conductive type formed on the other surface of the semiconductor crystal, a gate region of a second conductive type formed on the periphery of the source region, a high-resistance layer of a first conductive type between the source region and the drain region, and a recombination-inhibiting semiconductor layer of a second conductive type provided in the vicinity of the surface of the semiconductor crystal between the gate region and the source region.Type: ApplicationFiled: March 23, 2006Publication date: September 28, 2006Inventors: Ken-ichi Nonaka, Hideki Hashimoto, Seiichi Yokoyama, Kensuke Iwanaga, Yoshimitsu Saito
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Publication number: 20060145159Abstract: Light-emitting devices capable of preventing separation or alteration of a first electrode to obtain high performance, methods of manufacturing the light-emitting device, and display units are provided. A first electrode as an anode, an insulating film, an organic layer including a light-emitting layer, and a second electrode as a cathode are laminated in this order on a substrate with a planarizing layer as a base layer in between. The first electrode has a structure in which an adhesive layer, a reflective layer and a barrier layer is laminated in this order from the substrate. Alteration of the reflective layer can be prevented by the barrier layer, and the reflective layer can be prevented from being separated from the planarizing layer by the adhesive layer. The first electrode is formed through forming the adhesive layer, the reflective layer and the barrier layer on the planarizing layer, and then patterning them in order from the barrier layer.Type: ApplicationFiled: March 19, 2004Publication date: July 6, 2006Inventors: Seiichi Yokoyama, Koji Hanawa, Takanori Shibasaki, Takashi Hirano
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Patent number: 6894373Abstract: Thin film circuit elements including capacitors, resistors, and inductance elements are formed on a large substrate, and semiconductor chips are wire bonded to the substrate. The elements and chips are sealed by potting a sealing resin. The large substrate is divided into multiple stripe substrates by dicing and a thin-film conductive layer is sputtered on cut surfaces of the stripe substrates, thereby electrically connecting edges of lower conductive patterns to edges of upper conductive patterns exposed from side surfaces of the sealing resin through the thin-film conductive layer. A Ni foundation layer and Au layer are successively plated on a surface of the thin-film conductive layer to form edge electrodes on side surfaces of the stripe substrates and the stripe substrates are divided finely into individual alumina substrates.Type: GrantFiled: May 19, 2003Date of Patent: May 17, 2005Assignee: Alps Electric Co., Ltd.Inventors: Kazuhiko Ueda, Seiichi Yokoyama