Patents by Inventor Tatsuya Yamada
Tatsuya Yamada 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: 10852655Abstract: A liquid developer containing a resin binder, a colorant, a dispersant, and an insulating liquid, wherein the resin binder contains a resin having an acidic group, and wherein the dispersant contains a dispersant X having at least one basic nitrogen-containing group selected from the group consisting of an amino group, an imino group, a cyano group, an azo group, a diazo group, and an azide group, and wherein a melting point of the dispersant X is 34° C. or higher; and a method for printing a fused image using the liquid developer. The liquid developer of the present invention is suitably used in development or the like of latent images formed in, for example, electrophotography, electrostatic recording method, electrostatic printing method or the like.Type: GrantFiled: September 15, 2017Date of Patent: December 1, 2020Assignee: Kao CorporationInventors: Nobumichi Kamiyoshi, Yuri Nannichi, Kunihiro Kano, Akito Itoi, Tatsuya Yamada
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Publication number: 20200373040Abstract: An electric wire twisting device is provided, which is capable of producing a preferable twisted electric wire from a plurality of electric wires of which both ends are cut. An electric wire twisting device 1 includes a first gripping device 11 including a first clamp 2a that grips a first end of a first electric wire CT, a second clamp 2b that grips a first end of a second electric wire C2, and a first holder 15A that holds the first clamp 2a and the second clamp 2b. The electric wire twisting device 1 includes a second gripping device 12 that grips a second end of the first electric wire CT and a second end of the second electric wire CT, a first revolving actuator 3b that causes the first holder 15A to rotate around a center line of revolution CL, and a first rotating actuator 3a that causes the first clamp 2a and the second clamp 2b to rotate around a center line of rotation that is parallel to the center line of revolution CL or is inclined with respect to the center line of revolution CL.Type: ApplicationFiled: August 7, 2020Publication date: November 26, 2020Inventors: Hiroaki SHIRAI, Junya ENOMOTO, Takayuki MONONOBE, Naoki FUJISAWA, Tatsuya YAMADA
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Publication number: 20200331115Abstract: A polishing pad comprising a knitted fabric constituted by warp knitting or weft knitting, and a resin with which the knitted fabric is impregnated, and having a cross section cut in a surface direction of the knitted fabric, as a polishing surface.Type: ApplicationFiled: May 29, 2017Publication date: October 22, 2020Applicant: Fujibo Holdings, Inc.Inventors: Shin TOKUSHIGE, Keisuke NAKASE, Hiroshi KASHIWADA, Tatsuya YAMADA, Yousuke NARADA, Kenichi KOIKE
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Patent number: 10747529Abstract: A version management system includes a storage device that retains information on version histories of services each providing a predetermined function in a predetermined system, and an arithmetic device that executes a process of generating, based on the information on the version histories, a list of combination patterns of versions of the respective services as system configurations of the system, a process of excluding, from the patterns in the list, the pattern having a function fallback rate equal to or above a predetermined level, the function fallback rate being based on predefined necessary functions, and a process of identifying, in the patterns remaining in the list after the exclusion, the pattern with the highest similarity to a system configuration having a predetermined past operational track record, as a system configuration to which the system is to be restored upon occurrence of a problem.Type: GrantFiled: December 13, 2016Date of Patent: August 18, 2020Assignee: HITACHI, LTD.Inventors: Teruhisa Yuki, Suill Hong, Tatsuya Yamada
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Publication number: 20200257630Abstract: A history storage area (106) stores, for each of a plurality of pieces of data, number of times of access via a file system. A cache management unit (119), when access to the plurality of pieces of data not via the file system occurs, sets as overwrite prohibition data and caches in a disc cache area (108), data for which number of times of access that is equal to or more than a threshold is stored in the history storage area (106), the threshold being determined based on number of times of access of the plurality of pieces of data.Type: ApplicationFiled: December 18, 2017Publication date: August 13, 2020Applicant: Mitsubishi Electric CorporationInventors: Tatsuya YAMADA, Hirotaka MOTAI, Akio IDEHARA, Kotaro HASHIMOTO, Takehisa MIZUGUCHI
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Patent number: 10723127Abstract: A liquid ejection head including first and second recording element substrates adjacent in a direction intersecting a relative movement direction include ejection opening rows that include ejection openings arranged in the intersecting direction. A straight line connecting the ejection openings in end portions on a second recording element substrate side in the first recording element substrate and a straight line connecting the ejection openings in end portions on a first recording element substrate side in the second recording element substrate are inclined towards a middle area side of the first recording element substrate, and arrangement intervals of the ejection openings in an end portion area on the second recording element substrate side of a first ejection opening row is larger than arrangement intervals of the ejection openings in an end portion area on the first recording element substrate side of a second ejection opening row.Type: GrantFiled: April 1, 2019Date of Patent: July 28, 2020Assignee: Canon Kabushiki KaishaInventors: Koichi Ishida, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Takatsugu Moriya, Tomohiro Sato, Tatsuya Yamada, Tomoki Ishiwata, Ayako Iwasaki
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Publication number: 20200233330Abstract: A liquid developer containing toner particles containing a resin binder and a colorant, a dispersant, and an insulating liquid, wherein the resin binder contains a polyester-based resin, and wherein the insulating liquid contains 50% by mass or more of a saturated fatty acid ester which is an ester of a saturated fatty acid and an alcohol having 3 or more carbon atoms. The liquid developer of the present invention is suitably used in development or the like of latent images formed in, for example, electrophotography, electrostatic recording method, electrostatic printing method or the like.Type: ApplicationFiled: November 28, 2018Publication date: July 23, 2020Applicant: Kao CorporationInventors: Tatsuya YAMADA, Nobumichi KAMIYOSHI, Kosuke TAKEDA
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Publication number: 20200225938Abstract: A version management system includes a storage device that retains information on version histories of services each providing a predetermined function in a predetermined system, and an arithmetic device that executes a process of generating, based on the information on the version histories, a list of combination patterns of versions of the respective services as system configurations of the system, a process of excluding, from the patterns in the list, the pattern having a function fallback rate equal to or above a predetermined level, the function fallback rate being based on predefined necessary functions, and a process of identifying, in the patterns remaining in the list after the exclusion, the pattern with the highest similarity to a system configuration having a predetermined past operational track record, as a system configuration to which the system is to be restored upon occurrence of a problem.Type: ApplicationFiled: December 13, 2016Publication date: July 16, 2020Applicant: HITACHI, LTD.Inventors: Teruhisa Yuki, Suill Hong, Tatsuya Yamada
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Patent number: 10642181Abstract: A liquid developer containing toner particles containing a resin binder containing a polyester-based resin and a colorant, a dispersant, and an insulating liquid, wherein the dispersant contains a dispersant X having an adsorbing group having a nitrogen-containing group represented by the formula (I): wherein each of R1, R2, and R3, which may be identical or different, is an alkylene group having 1 or more carbon atoms and 22 or less carbon atoms, an alkenylene group having 2 or more carbon atoms and 22 or less carbon atoms, an alkynylene group having 2 or more carbon atoms and 22 or less carbon atoms, or an arylene group having 6 or more carbon atoms and 22 or less carbon atoms, and a dispersing group having a hydrocarbon group having a number-average molecular weight of 500 or more, and wherein the dispersant X has a mass ratio of the adsorbing group to the dispersing group (adsorbing group/dispersing group) of 1/99 or more and 42/58 or less, and a proportion of the dispersing group having a hydrocarbonType: GrantFiled: August 25, 2017Date of Patent: May 5, 2020Assignee: Kao CorporationInventors: Nobumichi Kamiyoshi, Tatsuya Yamada, Taiki Yamamoto, Kunihiro Kano
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Patent number: 10603910Abstract: A liquid discharge head includes a recording element configured to generate thermal energy and a discharge orifice disposed at a position facing the recording element. A bubble is generated in liquid by the thermal energy, liquid between the bubble and the discharge orifice is discharged from the discharge orifice by the pressure of the generated bubble, and the bubble communicates with the atmosphere on the outside of the discharge orifice.Type: GrantFiled: December 17, 2018Date of Patent: March 31, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Yoshiyuki Nakagawa, Shintaro Kasai, Akiko Hammura, Shinji Kishikawa, Takayuki Sekine, Shuzo Iwanaga, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada
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Publication number: 20200050783Abstract: A table determination unit performs a table determination process, when an access request occurs, of determining presence/absence of access authority by referring to an authority table. A code determination unit performs a code determination process, when the access request occurs, of determining presence/absence of the access authority by executing a determination code to determine presence/absence of the access authority. An access control unit allows access in a case where it is determined by the table determination process that the access authority is present and it is determined by the code determination process that the access authority is present.Type: ApplicationFiled: March 2, 2017Publication date: February 13, 2020Applicant: Mitsubishi Electric CorporationInventors: Tatsuya YAMADA, Takehisa MIZUGUCHI, Hirotaka MOTAI, Yurika TAKAHASHI, Tetsuji FUJISAKI
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Publication number: 20200010934Abstract: An aluminum alloy thick plate is formed of an aluminum alloy including Mg of 2.0 to 5.0 mass %. The aluminum alloy thick plate has a plate thickness of 300 to 400 mm. A is 160 pieces/cm2 or less and B is 1.15 times or more as large as A, where (i) A (pieces/cm2) is a maximum value in numbers of porosities with an equivalent circle diameter of 50 ?m or more in each of positions located at a center portion in a plate thickness direction and at positions of 0.39 Wa to 0.48 Wa in a plate width direction; and (ii) B (pieces/cm2) is a maximum value in numbers of porosities with an equivalent circle diameter of 50 ?m or more in each of positions located at the center portion in the plate thickness direction and at positions of 0.12 Wa to 0.30 Wa in the plate width direction.Type: ApplicationFiled: February 22, 2018Publication date: January 9, 2020Applicant: UACJ CorporationInventors: Takashi KUBO, Tatsuya YAMADA
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Patent number: 10507654Abstract: A print element substrate and a liquid ejection head capable of suppressing degradation of a print quality caused by a white stripe/black stripe etc., is actualized without using a high degree of microfabrication technology. As a result of asymmetric deformation by swelling in a direction of relative movement to a print medium, print elements having different liquid droplet ejection directions are made to coexist and arrayed for that purpose.Type: GrantFiled: May 23, 2017Date of Patent: December 17, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Saito, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Tomohiro Sato, Tomoki Ishiwata
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Patent number: 10495994Abstract: A liquid developer containing toner particles containing a resin and a pigment, wherein the toner particles are dispersed in an insulating liquid, wherein the resin contains a resin H having a softening point of 100° C. or higher and a resin L having a softening point of 93° C. or lower, wherein the resin H is a composite resin HC of a polyester resin and a styrenic resin, and the resin L is a polyester resin LP or a composite resin LC of a polyester resin and a styrenic resin, wherein the composite resin HC and the composite resin LC are each a resin in which a polyester resin and a styrenic resin are chemically bonded via a dually reactive monomer, and a method for producing the same. The liquid developer of the present invention is suitably used in development or the like of latent images formed in, for example, electrophotography, electrostatic recording method, electrostatic printing method or the like.Type: GrantFiled: May 12, 2016Date of Patent: December 3, 2019Assignee: Kao CorporationInventors: Tatsuya Yamada, Nobumichi Kamiyoshi
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Patent number: 10486421Abstract: A liquid discharging head includes a discharge port that discharges a liquid, a pressure chamber that communicates with the discharge port, and an energy generating element that is disposed in the pressure chamber. In the liquid discharging head, the discharge port is provided with a plurality of projections that project towards a central portion of the discharge port from an inner peripheral edge of the discharge port, and an interval between the projections at a location where the projections are closest to each other is 5 ?m or less.Type: GrantFiled: September 27, 2018Date of Patent: November 26, 2019Assignee: Canon Kabushiki KaishaInventors: Takatsugu Moriya, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Tatsuya Yamada, Tomohiro Sato, Ayako Iwasaki, Tomoki Ishiwata, Koichi Ishida
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Publication number: 20190354033Abstract: A liquid developer containing a resin binder, a colorant, a dispersant, and an insulating liquid, wherein the resin binder contains a resin having an acidic group, and wherein the dispersant contains a dispersant X having at least one basic nitrogen-containing group selected from the group consisting of an amino group, an imino group, a cyano group, an azo group, a diazo group, and an azide group, and wherein a melting point of the dispersant X is 34° C. or higher; and a method for printing a fused image using the liquid developer. The liquid developer of the present invention is suitably used in development or the like of latent images formed in, for example, electrophotography, electrostatic recording method, electrostatic printing method or the like.Type: ApplicationFiled: September 15, 2017Publication date: November 21, 2019Applicant: Kao CorporationInventors: Nobumichi KAMIYOSHI, Yuri NANNICHI, Kunihiro KANO, Akito ITOI, Tatsuya YAMADA
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Publication number: 20190308413Abstract: A liquid ejection head including first and second recording element substrates adjacent in a direction intersecting a relative movement direction include ejection opening rows that include ejection openings arranged in the intersecting direction. A straight line connecting the ejection openings in end portions on a second recording element substrate side in the first recording element substrate and a straight line connecting the ejection openings in end portions on a first recording element substrate side in the second recording element substrate are inclined towards a middle area side of the first recording element substrate, and arrangement intervals of the ejection openings in an end portion area on the second recording element substrate side of a first ejection opening row is larger than arrangement intervals of the ejection openings in an end portion area on the first recording element substrate side of a second ejection opening row.Type: ApplicationFiled: April 1, 2019Publication date: October 10, 2019Inventors: Koichi Ishida, Shuzo Iwanaga, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Takatsugu Moriya, Tomohiro Sato, Tatsuya Yamada, Tomoki Ishiwata, Ayako Iwasaki
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Patent number: 10421276Abstract: A printing element substrate includes a substrate, an energy generating element, and an ejection-port formed member. The energy generating element is disposed on one surface of the substrate and configured to generate energy for use in ejecting liquid. The ejection-port formed member includes ejection ports that eject the liquid. A protrusion protruding toward inside of each of the ejection ports is provided on an inner surface of the ejection port. In a surface of the ejection-port formed member remote from the substrate, a tip portion of the protrusion is positioned closer to the substrate than an outer periphery of the ejection port.Type: GrantFiled: May 15, 2017Date of Patent: September 24, 2019Assignee: Canon Kabushiki KaishaInventors: Akiko Saito, Shintaro Kasai, Yoshiyuki Nakagawa, Takatsugu Moriya, Koichi Ishida, Tatsuya Yamada, Shuzo Iwanaga, Ayako Iwasaki, Tomoki Ishiwata, Tomohiro Sato
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Publication number: 20190232653Abstract: A recording element board includes a discharge orifice configured to discharge liquid, a pressure chamber communicating with the discharge orifice, a recording element configured to generate thermal energy to cause bubbling of the liquid, the recording element being disposed in the pressure chamber facing the discharge orifice, and a substrate on which the recording element is formed. When the recording element is driven and the liquid of within the pressure chamber is discharged, a generated bubble communicates with the atmosphere. A discharge orifice projection region where the discharge orifice has been projected on the substrate includes a region includes a region extending beyond a heat-generating region projection region where the heat-generating region of the recording element has been projected on the substrate, the outline of the discharge orifice projection region is circumscribed by the outline of the heat-generating region projection region.Type: ApplicationFiled: April 4, 2019Publication date: August 1, 2019Inventors: Takatsugu Moriya, Shintaro Kasai, Yoshiyuki Nakagawa, Akiko Hammura, Koichi Ishida, Tatsuya Yamada, Shinji Kishikawa, Takayuki Sekine, Shuzo Iwanaga
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Publication number: 20190214166Abstract: An electric wire twisting device is provided, which is capable of producing a preferable twisted electric wire from a plurality of electric wires of which both ends are cut. An electric wire twisting device 1 includes a first gripping device 11 including a first clamp 2a that grips a first end of a first electric wire CT, a second clamp 2b that grips a first end of a second electric wire C2, and a first holder 15A that holds the first clamp 2a and the second clamp 2b. The electric wire twisting device 1 includes a second gripping device 12 that grips a second end of the first electric wire CT and a second end of the second electric wire CT, a first revolving actuator 3b that causes the first holder 15A to rotate around a center line of revolution CL, and a first rotating actuator 3a that causes the first clamp 2a and the second clamp 2b to rotate around a center line of rotation that is parallel to the center line of revolution CL or is inclined with respect to the center line of revolution CL.Type: ApplicationFiled: March 13, 2017Publication date: July 11, 2019Inventors: Hiroaki SHIRAI, Junya ENOMOTO, Takayuki MONONOBE, Naoki FUJISAWA, Tatsuya YAMADA