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: 9041629Abstract: 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 15, 2013Date of Patent: May 26, 2015Assignee: Sony CorporationInventor: Seiichi Yokoyama
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Patent number: 8981352Abstract: A display unit includes, on a substrate, a plurality of organic EL devices, and an insulating film provided in an inter-device region between the plurality of organic EL devices, the insulating film including a groove in a position between the organic EL devices adjacent to each other.Type: GrantFiled: March 1, 2012Date of Patent: March 17, 2015Assignee: Sony CorporationInventors: Jiro Yamada, Seiichi Yokoyama, Eiji Hasegawa, Atsuya Makita, Masanao Uesugi, Shoichi Gondo, Tomoyoshi Ichikawa, Junichi Yamashita
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Publication number: 20150069375Abstract: An organic light emitting device includes a first electrode and a second electrode, an organic layer including a light emitting layer between the first electrode and the second electrode, and an insulating film covering a rim of the first electrode from a surface thereof to a side surface thereof, and having an internal wall surface being in contact with the organic layer, and one or more corner sections in the internal wall surface with a ridge line thereof in parallel with the surface of the first electrode.Type: ApplicationFiled: November 18, 2014Publication date: March 12, 2015Inventors: Seiichi Yokoyama, Atsuya Makita, Eiji Hasegawa, Jiro Yamada, Hirohisa Shirai, Yasutaka Koga, Shinsuke Hibarino
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Patent number: 8963170Abstract: An organic light emitting device includes a first electrode and a second electrode, an organic layer including a light emitting layer between the first electrode and the second electrode, and an insulating film covering a rim of the first electrode from a surface thereof to a side surface thereof, and having an internal wall surface being in contact with the organic layer, and one or more corner sections in the internal wall surface with a ridge line thereof in parallel with the surface of the first electrode.Type: GrantFiled: March 6, 2012Date of Patent: February 24, 2015Assignee: Sony CorporationInventors: Seiichi Yokoyama, Atsuya Makita, Eiji Hasegawa, Jiro Yamada, Hirohisa Shirai, Yasutaka Koga, Shinsuke Hibarino
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Patent number: 8963417Abstract: An organic light emitting device includes, in order an anode, an organic layer comprising a light-emitting layer, and a cathode. The anode is a laminated structure comprising in order: a first anode layer comprising a metal compound or a conductive oxide; a second anode layer that is a reflective layer; and a third anode layer comprising a metal compound or a conductive oxide. Light generated in the light-emitting layer is extracted through the cathode.Type: GrantFiled: July 24, 2014Date of Patent: February 24, 2015Assignee: Sony CorporationInventor: Seiichi Yokoyama
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Publication number: 20150048328Abstract: A display unit includes a plurality of first electrodes provided to respective pixels; an insulating layer having an opening facing each of the first electrodes and having an overhang at an edge of the opening; a charge injection-transport layer being cut or having higher resistance at the overhang of the insulating layer to exhibit one or both of a charge injection property and a charge transport property; an organic layer including one light-emitting layer or a plurality of light-emitting layers common to all of the pixels; and a second electrode formed on an entire surface of the organic layer, the first electrodes, the insulating layer, the charge injection-transport layer, the organic layer, and the second electrode being disposed in this order from a substrate side.Type: ApplicationFiled: May 22, 2014Publication date: February 19, 2015Applicant: Sony CorporationInventors: Takayoshi Kato, Seiichi Yokoyama, Mitsuharu Shoji, Takashi Sakairi
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Patent number: 8919918Abstract: The present invention provides an inkjet printing apparatus in which aggregate or the like clogged in a nozzle is sucked to recover the clogged nozzle and provides a clogged nozzle recovering method. The inkjet printing apparatus in accordance with the present invention includes a cap which is structured to cover some of plural nozzles formed in a nozzle face of a head of an inkjet printer, a pressure sensor which acquires a pressure in an inside of the cap in a state that the some of the plural nozzles are covered by the cap, a suction means which sucks the inside of the cap with a pressure lower than a negative pressure at which a meniscus of a nozzle that is not covered with the cap is broken, and a nozzle recovery judgment means which judges recovery of a nozzle by comparing a reference pressure value, which is obtained when nozzles without being clogged are covered by the cap and sucked and is stored beforehand, with a pressure value which is outputted from the pressure sensor.Type: GrantFiled: October 30, 2013Date of Patent: December 30, 2014Assignee: Mimaki Engineering Co., Ltd.Inventors: Tomomi Igawa, Seiichi Yokoyama
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Publication number: 20140332784Abstract: An organic light emitting device includes, in order an anode, an organic layer comprising a light-emitting layer, and a cathode. The anode is a laminated structure comprising in order: a first anode layer comprising a metal compound or a conductive oxide; a second anode layer that is a reflective layer; and a third anode layer comprising a metal compound or a conductive oxide. Light generated in the light-emitting layer is extracted through the cathode.Type: ApplicationFiled: July 24, 2014Publication date: November 13, 2014Inventor: Seiichi Yokoyama
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Publication number: 20140332832Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.Type: ApplicationFiled: July 24, 2014Publication date: November 13, 2014Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
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Publication number: 20140132664Abstract: The present invention provides an inkjet printing apparatus in which aggregate or the like clogged in a nozzle is sucked to recover the clogged nozzle and provides a clogged nozzle recovering method. The inkjet printing apparatus in accordance with the present invention includes a cap which is structured to cover some of plural nozzles formed in a nozzle face of a head of an inkjet printer, a pressure sensor which acquires a pressure in an inside of the cap in a state that the some of the plural nozzles are covered by the cap, a suction means which sucks the inside of the cap with a pressure lower than a negative pressure at which a meniscus of a nozzle that is not covered with the cap is broken, and a nozzle recovery judgment means which judges recovery of a nozzle by comparing a reference pressure value, which is obtained when nozzles without being clogged are covered by the cap and sucked and is stored beforehand, with a pressure value which is outputted from the pressure sensor.Type: ApplicationFiled: October 30, 2013Publication date: May 15, 2014Applicant: MIMAKI ENGINEERING CO., LTD.Inventors: Tomomi IGAWA, Seiichi YOKOYAMA
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Patent number: 8721060Abstract: A liquid circulation system includes an inkjet head formed with a common ink flow passage, an ink cartridge, a supply flow passage through which ink is supplied from the ink cartridge to an inlet of the common ink flow passage, a return flow passage through which the ink is returned from the outlet of the common ink flow passage to the ink cartridge, a tube pump sending the ink in the supply flow passage, a tube pump sending the ink in the return flow passage, a pressurization bellows unit pressurizing the ink in the supply flow passage, a pressure reduction bellows unit depressurizing the ink in the return flow passage, a pressurization regulator maintaining the inlet being a center value “+?” of a designated head value, and a differential pressure regulator by which a differential pressure of the ink between the inlet and the outlet is maintained to be “2?”.Type: GrantFiled: November 26, 2010Date of Patent: May 13, 2014Assignee: Mimaki Engineering Co., Ltd.Inventors: Seiichi Yokoyama, Tomomi Igawa
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Patent number: 8703626Abstract: 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: GrantFiled: August 13, 2007Date of Patent: April 22, 2014Assignee: Shindengen Electric Manufacturing Co., Ltd.Inventors: Koichi Nishikawa, Masaaki Shimizu, Kenichi Nonaka, Seiichi Yokoyama, Hideki Hashimoto
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Publication number: 20140031679Abstract: An optical scanning probe comprising a flexible tube, an optical fiber for transmitting scanning light that is supported in the flexible tube to be able to freely rotate about an axis of the optical fiber, and an objective lens that has a positive optical power to convert the scanning light emerging from the optical fiber from a divergent beam to a collimated beam or a convergent beam and rotates integrally with the optical fiber, and wherein the objective lens is provided with a deflection surface that deflects the scanning light to irradiate an object.Type: ApplicationFiled: January 23, 2012Publication date: January 30, 2014Applicant: HOYA CORPORATIONInventors: Yoshiyuki Tashiro, Masashi Kitatsuji, Seiichi Yokoyama
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Patent number: 8608300Abstract: An ink circulation system includes: an ink-jet head in which a shared ink flowing route is formed, an ink tank, a supply flowing route for supplying ink from the ink tank to the shared ink flowing route, a reflux flowing route for refluxing the ink from the shared ink flowing route to the ink tank, and a differential pressure generating unit for generating a differential pressure in the ink tank. The differential pressure generating unit is equipped with an impeller placed inside the ink tank, and a drive unit placed outside the ink tank. Then, the drive unit operates to turn the impeller, by means of remote driving, for generating a differential pressure between a supply port of the supply flowing route and a reflux port of the reflux flowing route so as to circulate the ink through the ink flowing route.Type: GrantFiled: October 13, 2010Date of Patent: December 17, 2013Assignee: Mimaki Engineering Co., Ltd.Inventors: Tomomi Igawa, Seiichi Yokoyama
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Publication number: 20130289396Abstract: There is provided an OCT probe, comprising: a flexible tube; an optical fiber that transmits object light and is supported in the flexible tube to be able to freely rotate about an axis of the optical fiber; an objective optical system that is fixed to a tip of the optical fiber and includes a condensing optical system which condenses the object light emerging from the optical fiber, and a deflection optical element which irradiates a subject with the object light by deflecting the condensed object light; and a barycenter adjustment member that is fixed to the objective optical system and causes a combined barycenter of the objective optical system and the barycenter adjustment member to be situated on the axis of the optical fiber.Type: ApplicationFiled: January 13, 2012Publication date: October 31, 2013Applicant: HOYA CORPORATIONInventors: Masashi Kitatsuji, Seiichi Yokoyama, Yoshiyuki Tashiro
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Publication number: 20130248836Abstract: 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: May 15, 2013Publication date: September 26, 2013Applicant: SONY CORPORATIONInventor: Seiichi Yokoyama
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Publication number: 20130248837Abstract: 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: May 15, 2013Publication date: September 26, 2013Applicant: Sony CorporationInventor: Seiichi Yokoyama
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Patent number: 8415686Abstract: 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: GrantFiled: June 14, 2011Date of Patent: April 9, 2013Assignee: Sony CorporationInventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
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Publication number: 20130056714Abstract: An organic EL display includes: a plurality of first electrodes provided in a display region on a drive substrate, the plurality of first electrodes each including a laminated film having two or more layers; an organic layer provided on the plurality of first electrodes and including a light emitting layer; an electrode pad provided in a peripheral region around the display region; and a second electrode provided on the organic layer as well as the electrode pad, wherein the laminated film includes a first conductive film functioning as a reflective film, and a second conductive film provided below the first conductive film, and having a reflectance lower than that of the first conductive film, and the electrode pad corresponds to a part of the laminated film, and includes a conductive film made of a material same as that of the second conductive film.Type: ApplicationFiled: August 24, 2012Publication date: March 7, 2013Applicant: SONY CORPORATIONInventors: Eiji Hasegawa, Atsuya Makita, Jiro Yamada, Seiichi Yokoyama, Hidetoshi Noda, Hiroshi Sagawa
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Publication number: 20130021416Abstract: Liquid is appropriately circulated with a low cost and thereby precipitation of fine particles in the liquid is prevented and bubbles in the liquid flow passage are removed.Type: ApplicationFiled: November 26, 2010Publication date: January 24, 2013Inventors: Seiichi Yokoyama, Tomomi Igawa