Patents by Inventor Norihito Harada
Norihito Harada 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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Publication number: 20200117031Abstract: In a liquid crystal device, a sheet resistance of an ITO film constituting a common electrode is set to be not less than 19?/? and not more than 44?/? so that the surface roughness of the ITO film is managed. Accordingly, a pre-tilt angle ?p of a liquid crystal material can be set to 4.3±0.6°, which can suppress the video domain and improve the contrast. Additionally, a specific resistance of the ITO film may be set to be not less than 2740 nm·?/? and not more than 6740 nm·?/?. In addition, in an X-ray diffraction result of the ITO film, an intensity Ia of a crystal plane orientation and an intensity Ib of a crystal plane orientation is configured to satisfy a following relationship: 0.85?(Ia/(Ia+Ib))?0.Type: ApplicationFiled: October 9, 2019Publication date: April 16, 2020Applicant: SEIKO EPSON CORPORATIONInventors: Norihito HARADA, Hirokazu AYUKAWA
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Patent number: 8827579Abstract: A grounding structure achieves a conductive state between members by making contact with the members. One member includes a screw-shaped portion in at least part of the member, and the other member includes an anchoring portion that engages with the screw-shaped portion of the one member under a biasing force in an interlocked state.Type: GrantFiled: August 26, 2011Date of Patent: September 9, 2014Assignee: Seiko Epson CorporationInventors: Yasushi Yajima, Daisuke Hiruma, Ryo Hamano, Norihito Harada
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Patent number: 8690282Abstract: A liquid ejecting apparatus includes a liquid ejecting head unit including a plurality of liquid ejecting heads in a parallel arrangement. Each liquid ejecting head ejects a liquid from nozzles formed in a nozzle face toward an ejection target object in accordance with a drive signal from a controller. Each liquid ejecting head has an individual two-dimensional code that includes at least a portion of information related to the liquid ejecting head. The liquid ejecting head unit includes a collective two-dimensional code that includes arrangement information of the liquid ejecting heads in the liquid ejecting head unit and collective information related to the information included in the individual two-dimensional codes.Type: GrantFiled: December 9, 2011Date of Patent: April 8, 2014Assignee: Seiko Epson CorporationInventors: Hiroyuki Hagiwara, Yasushi Yajima, Norihito Harada, Daisuke Hiruma, Ryo Hamano, Hiroyuki Ishii
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Patent number: 8430480Abstract: The liquid ejection device of the present invention includes a guide shaft; a first guide shaft supporting member and second guide shaft supporting member supporting the guide shaft; a carriage configured to move in reciprocal manner along the guide shaft; and a liquid ejection head mounted to the carriage. The end parts of the first guide shaft supporting member and second guide shaft supporting member on the side of the guide shaft are connected to the guide shaft in the horizontal direction or downward from the horizontal direction orthogonal to the up-down direction with respect to the guide shaft.Type: GrantFiled: January 21, 2011Date of Patent: April 30, 2013Assignee: Seiko Epson CorporationInventors: Yasushi Yajima, Daisuke Hiruma, Norihito Harada, Ryo Hamano
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Patent number: 8403454Abstract: At a front-end side opposite to a head-fixing-member-attachment side, a protection member has an inclined plane sloped up from a head side toward the opposite outer side in a direction in which liquid ejecting heads are arranged in a row. The surface of the front end is located at a position that is not closer to a head-fixing member in comparison with the nozzle surface of each of the liquid ejecting heads attached to the head-fixing member or level therewith. A recess is formed at a part of the inclined plane. In a state in which one of the caps faces the protection member and, in addition, each of the remaining caps is in contact with the nozzle surface of the liquid ejecting head, a part of the cap facing the protection member is in the recess, which ensures that the cap is not in contact with the protection member.Type: GrantFiled: July 7, 2011Date of Patent: March 26, 2013Assignee: Seiko Epson CorporationInventors: Kenichi Kitamura, Yasushi Yajima, Norihito Harada, Daisuke Hiruma, Ryo Hamano, Hiroyuki Hagiwara
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Patent number: 8264649Abstract: A liquid crystal device includes a pair of substrates, liquid crystal sandwiched between the pair of substrates, and a plurality of sub-pixels. Each sub-pixel has a transmissive display region and a reflective display region. One of the substrates has a color filter and a transparent insulating film disposed on the color filter. The transparent insulating film has a thin-walled portion provided in the transmissive display region and a region along a boundary between the adjacent sub-pixels. At least a portion of a region in which the thin-walled portion of the transparent insulating film is not provided overlaps the reflective display region. The layer thickness of the liquid crystal in the reflective display region is smaller than the layer thickness of the liquid crystal in the transmissive display region in consideration of the thin-walled portion.Type: GrantFiled: August 30, 2006Date of Patent: September 11, 2012Assignee: Sony CorporationInventors: Norihito Harada, Hayato Kurasawa, Toshinori Uehara, Masahiro Kosuge
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Publication number: 20120147076Abstract: A liquid ejecting apparatus includes a liquid ejecting head unit including a plurality of liquid ejecting heads in a parallel arrangement. Each liquid ejecting head ejects a liquid from nozzles formed in a nozzle face toward an ejection target object in accordance with a drive signal from a controller. Each liquid ejecting head has an individual two-dimensional code that includes at least a portion of information related to the liquid ejecting head. The liquid ejecting head unit includes a collective two-dimensional code that includes arrangement information of the liquid ejecting heads in the liquid ejecting head unit and collective information related to the information included in the individual two-dimensional codes.Type: ApplicationFiled: December 9, 2011Publication date: June 14, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Hiroyuki HAGIWARA, Yasushi YAJIMA, Norihito HARADA, Daisuke HIRUMA, Ryo HAMANO, Hiroyuki ISHII
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Publication number: 20120051822Abstract: A grounding structure achieves a conductive state between members by making contact with the members. One member includes a screw-shaped portion in at least part of the member, and the other member includes an anchoring portion that engages with the screw-shaped portion of the one member under a biasing force in an interlocked state.Type: ApplicationFiled: August 26, 2011Publication date: March 1, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Yasushi YAJIMA, Daisuke HIRUMA, Ryo HAMANO, Norihito HARADA
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Publication number: 20120044310Abstract: A position adjustment mechanism is provided to adjust a position of second member with respect to a first member. The position adjustment mechanism includes: a cam that is provided in the first member so that a cam surface of the cam abuts the second member; and a fixing portion that is provided in a forming area of the cam surface in the first member and fixes the second member to the first member by screw in a state where the position of the second member with respect to the first member is adjusted by the cam.Type: ApplicationFiled: August 17, 2011Publication date: February 23, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Yasushi Yajima, Daisuke Hiruma, Ryo Hamano, Norihito Harada
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Publication number: 20120013680Abstract: At a front-end side opposite to a head-fixing-member-attachment side, a protection member has an inclined plane sloped up from a head side toward the opposite outer side in a direction in which liquid ejecting heads are arranged in a row. The surface of the front end is located at a position that is not closer to a head-fixing member in comparison with the nozzle surface of each of the liquid ejecting heads attached to the head-fixing member or level therewith. A recess is formed at a part of the inclined plane. In a state in which one of the caps faces the protection member and, in addition, each of the remaining caps is in contact with the nozzle surface of the liquid ejecting head, a part of the cap facing the protection member is in the recess, which ensures that the cap is not in contact with the protection member.Type: ApplicationFiled: July 7, 2011Publication date: January 19, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Kenichi Kitamura, Yasushi Yajima, Norihito Harada, Daisuke Hiruma, Ryo Hamano, Hiroyuki Hagiwara
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Patent number: 8068202Abstract: A liquid crystal device includes a first substrate and a second substrate opposite each other with a liquid crystal layer interposed therebetween, wherein the first substrate includes a signal line, a switching element electrically connected to the signal line, a first electrode electrically connected to the switching element, a wiring line, a dielectric film covering the first electrode, the switching element, and the wiring line, and a second electrode disposed on the dielectric film so as to be opposite the first electrode, and wherein the second electrode is drawn from the dielectric film toward an area where the dielectric film does not exist and is electrically connected to the wiring line through the area where the dielectric film does not exist.Type: GrantFiled: November 19, 2007Date of Patent: November 29, 2011Assignee: Sony CorporationInventors: Norihito Harada, Katsuhiro Imai
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Publication number: 20110242211Abstract: A liquid ejection device includes a primary guide shaft extending along a primary scanning direction, a carriage supported on the primary guide shaft so as to be movable in the primary scanning direction, a liquid ejection head mounted on the carriage, a liquid supply tube connected at one end to a liquid storage member and connected at the other end to the liquid ejection head, and a contact member contacting a curved portion of the liquid supply tube extending from the carriage to form a curved shape. The contact member bears reactive force directed at the primary guide shaft in the conveying direction of the recording medium throughout the scanning range of the carriage from the liquid supply tube.Type: ApplicationFiled: April 1, 2011Publication date: October 6, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Ryo HAMANO, Daisuke HIRUMA, Yasushi YAJIMA, Norihito HARADA
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Patent number: 8009253Abstract: An electro-optical device includes: a sealant provided between a pair of substrates in a frame shape; an electro-optical material layer formed by sealing an electro-optical material within a region surrounded by the sealant; an insulating layer provided within the region surrounded by the sealant on at least one of the pair of substrates; and an alignment layer provided between the insulating layer and the electro-optical material layer. The region surrounded by the sealant includes an effective display region where display is performed and a peripheral region located between the effective display region and the sealant, and the insulating layer within the peripheral region is formed with a recessed portion to which a material of the alignment layer flows.Type: GrantFiled: February 11, 2009Date of Patent: August 30, 2011Assignee: Sony CorporationInventor: Norihito Harada
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Publication number: 20110199430Abstract: The liquid ejection device of the present invention includes a guide shaft; a first guide shaft supporting member and second guide shaft supporting member supporting the guide shaft; a carriage configured to move in reciprocal manner along the guide shaft; and a liquid ejection head mounted to the carriage. The end parts of the first guide shaft supporting member and second guide shaft supporting member on the side of the guide shaft are connected to the guide shaft in the horizontal direction or downward from the horizontal direction orthogonal to the up-down direction with respect to the guide shaft.Type: ApplicationFiled: January 21, 2011Publication date: August 18, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Yasushi YAJIMA, Daisuke HIRUMA, Norihito HARADA, Ryo HAMANO
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Publication number: 20090153787Abstract: An electro-optical device includes: a sealant provided between a pair of substrates in a frame shape; an electro-optical material layer formed by sealing an electro-optical material within a region surrounded by the sealant; an insulating layer provided within the region surrounded by the sealant on at least one of the pair of substrates; and an alignment layer provided between the insulating layer and the electro-optical material layer. The region surrounded by the sealant includes an effective display region where display is performed and a peripheral region located between the effective display region and the sealant, and the insulating layer within the peripheral region is formed with a recessed portion to which a material of the alignment layer flows.Type: ApplicationFiled: February 11, 2009Publication date: June 18, 2009Applicant: EPSON IMAGING DEVICES CORP.Inventor: Norihito Harada
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Patent number: 7443470Abstract: A liquid crystal device includes a pair of substrates, a liquid crystal layer provided between the substrates, and a plurality of sub-pixels each having a transmissive display region and a reflective display region. One of the substrates includes switching elements corresponding to the sub-pixels, lines connected to the switching elements, and an insulating film provided on the switching elements and the lines. The insulating film includes first recesses provided in the transmissive display regions, and second recesses provided along boundaries between the adjoining sub-pixels. At least a part of the insulating film other than the first and second recesses planarly overlaps with the reflective display regions. The thickness of the liquid crystal layer is smaller in the reflective display regions than in the transmissive display regions having the first recesses. The depth of the second recesses is smaller than the depth of the first recesses.Type: GrantFiled: September 21, 2006Date of Patent: October 28, 2008Assignee: Epson Imaging Devices CorporationInventors: Norihito Harada, Kimitaka Kamijo, Katsuhiro Imai, Toshihiro Otake
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Publication number: 20080225194Abstract: A liquid crystal device includes a first substrate and a second substrate opposite each other with a liquid crystal layer interposed therebetween, wherein the first substrate includes a signal line, a switching element electrically connected to the signal line, a first electrode electrically connected to the switching element, a wiring line, a dielectric film covering the first electrode, the switching element, and the wiring line, and a second electrode disposed on the dielectric film so as to be opposite the first electrode, and wherein the second electrode is drawn from the dielectric film toward an area where the dielectric film does not exist and is electrically connected to the wiring line through the area where the dielectric film does not exist.Type: ApplicationFiled: November 19, 2007Publication date: September 18, 2008Applicant: EPSON IMAGING DEVICES CORPORATIONInventors: Norihito Harada, Katsuhiro Imai
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Publication number: 20070076146Abstract: A liquid crystal device includes a pair of substrates, a liquid crystal layer provided between the substrates, and a plurality of sub-pixels each having a transmissive display region and a reflective display region. One of the substrates includes switching elements corresponding to the sub-pixels, lines connected to the switching elements, and an insulating film provided on the switching elements and the lines. The insulating film includes first recesses provided in the transmissive display regions, and second recesses provided along boundaries between the adjoining sub-pixels. At least a part of the insulating film other than the first and second recesses planarly overlaps with the reflective display regions. The thickness of the liquid crystal layer is smaller in the reflective display regions than in the transmissive display regions having the first recesses. The depth of the second recesses is smaller than the depth of the first recesses.Type: ApplicationFiled: September 21, 2006Publication date: April 5, 2007Applicant: SANYO EPSON IMAGING DEVICES CORPORATIONInventors: Norihito Harada, Kimitaka Kamijo, Katsuhiro Imai, Toshihiro Otake
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Publication number: 20070064184Abstract: A liquid crystal device includes a pair of substrates, liquid crystal sandwiched between the pair of substrates, and a plurality of sub-pixels. Each sub-pixel has a transmissive display region and a reflective display region. One of the substrates has a color filter and a transparent insulating film disposed on the color filter. The transparent insulating film has a thin-walled portion provided in the transmissive display region and a region along a boundary between the adjacent sub-pixels. At least a portion of a region in which the thin-walled portion of the transparent insulating film is not provided overlaps the reflective display region. The layer thickness of the liquid crystal in the reflective display region is smaller than the layer thickness of the liquid crystal in the transmissive display region in consideration of the thin-walled portion.Type: ApplicationFiled: August 30, 2006Publication date: March 22, 2007Applicant: SANYO EPSON IMAGING DEVICES CORPORATIONInventors: Norihito Harada, Hayato Kurasawa, Toshinori Uehara, Masahiro Kosuge
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Publication number: 20060290871Abstract: An electro-optical device includes: a sealant provided between a pair of substrates in a frame shape; an electro-optical material layer formed by sealing an electro-optical material within a region surrounded by the sealant; an insulating layer provided within the region surrounded by the sealant on at least one of the pair of substrates; and an alignment layer provided between the insulating layer and the electro-optical material layer. The region surrounded by the sealant includes an effective display region where display is performed and a peripheral region located between the effective display region and the sealant, and the insulating layer within the peripheral region is formed with a recessed portion to which a material of the alignment layer flows.Type: ApplicationFiled: June 14, 2006Publication date: December 28, 2006Applicant: SANYO EPSON IMAGING DEVICES CORP.Inventor: Norihito Harada