Patents by Inventor Masaru Takayama
Masaru Takayama 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: 20240112932Abstract: According to one embodiment, a manufacturing device of a display device includes a conveyance mechanism for conveying a processing substrate in a first direction, and first, second, third and fourth evaporation portions arranged in order in the first direction. The first evaporation portion includes a plurality of evaporation chambers for forming an organic layer. The second evaporation portion includes an evaporation chamber for forming an upper electrode. The third evaporation portion includes an evaporation chamber for forming a first transparent layer. The fourth evaporation portion includes an evaporation chamber for forming a second transparent layer having a refractive index less than a refractive index of the first transparent layer on the first transparent layer.Type: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventors: Takanobu TAKENAKA, Hirofumi MIZUKOSHI, Masaru TAKAYAMA, Yuki HAMADA
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Publication number: 20240099110Abstract: According to one embodiment, a manufacturing method of a display device includes preparing a processing substrate by forming a lower electrode, a rib and a partition, forming an organic layer on the lower electrode, forming an upper electrode on the organic layer, forming a first transparent layer on the upper electrode by depositing a first organic material, forming a second transparent layer on the first transparent layer by depositing a second organic material, and depositing the second organic material on each of a plurality of crystal oscillators included in a film thickness measurement device by emitting the second organic material from first and second nozzles of an evaporation source before forming the second transparent layer.Type: ApplicationFiled: September 20, 2023Publication date: March 21, 2024Applicant: Japan Display Inc.Inventors: Hirofumi MIZUKOSHI, Takanobu TAKENAKA, Masaru TAKAYAMA, Kaichi FUKUDA
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Patent number: 11937463Abstract: According to one embodiment, a display device includes a substrate, a lower electrode, a rib, a partition including a lower portion and an upper portion, an organic layer provided on the lower electrode and including a light emitting layer, and an upper electrode provided on the organic layer and in contact with the lower portion of the partition. The organic layer includes a first end portion located on the rib, and a second end portion located on the rib on an opposite side of the first end portion. A thickness of the upper electrode immediately above the second end portion is greater than a thickness of the upper electrode immediately above the first end portion.Type: GrantFiled: August 16, 2023Date of Patent: March 19, 2024Assignee: JAPAN DISPLAY INC.Inventor: Masaru Takayama
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Publication number: 20230422560Abstract: According to one embodiment, a display device comprising a first lower electrode, a rib including a first pixel aperture overlapping with the first lower electrode, a partition arranged on the rib, a first upper electrode opposed to the first lower electrode, and a first organic layer located between the first lower electrode and the first upper electrode. The partition includes a lower portion having a first side surface and an upper portion protruding from the first side surface. The first organic layer is in contact with the first side surface.Type: ApplicationFiled: June 27, 2023Publication date: December 28, 2023Applicant: Japan Display Inc.Inventor: Masaru TAKAYAMA
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Publication number: 20230389367Abstract: According to one embodiment, a display device includes a substrate, a lower electrode, a rib, a partition including a lower portion and an upper portion, an organic layer provided on the lower electrode and including a light emitting layer, and an upper electrode provided on the organic layer and in contact with the lower portion of the partition. The organic layer includes a first end portion located on the rib, and a second end portion located on the rib on an opposite side of the first end portion. A thickness of the upper electrode immediately above the second end portion is greater than a thickness of the upper electrode immediately above the first end portion.Type: ApplicationFiled: August 16, 2023Publication date: November 30, 2023Applicant: Japan Display Inc.Inventor: Masaru TAKAYAMA
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Publication number: 20230380216Abstract: According to one embodiment, a manufacturing method of a display device includes preparing a processing substrate, forming an organic layer, and forming an etching stopper layer on the organic layer. The forming the etching stopper layer includes carrying the processing substrate into a chamber, inside the chamber, emitting a material for forming the etching stopper layer from an evaporation source which inclines with respect to a normal of the processing substrate, and conveying the processing substrate while rotating the processing substrate in a plane orthogonal to the normal, and depositing the material emitted from the evaporation source on the processing substrate.Type: ApplicationFiled: May 16, 2023Publication date: November 23, 2023Applicant: Japan Display Inc.Inventors: Hirofumi MIZUKOSHI, Kaichi FUKUDA, Takanobu TAKENAKA, Masaru TAKAYAMA
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Publication number: 20230354678Abstract: According to one embodiment, a manufacturing method of a display device includes forming processing substrate, forming an organic layer, forming an upper electrode, forming a transparent layer, and forming an inorganic layer. The forming the upper electrode includes inclining a first evaporation source with respect to a normal of the processing substrate and depositing a material emitted from the first evaporation source while conveying the processing substrate. The forming the inorganic layer includes inclining a second evaporation source to a side opposite to a side to which the first evaporation source is inclined and depositing a material emitted from the second evaporation source while conveying the processing substrate.Type: ApplicationFiled: April 12, 2023Publication date: November 2, 2023Applicant: Japan Display Inc.Inventors: Hirofumi MIZUKOSHI, Kaichi FUKUDA, Takanobu TAKENAKA, Masaru TAKAYAMA
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Publication number: 20230345806Abstract: According to one embodiment, a processing substrate is prepared. An organic layer is formed. An etching stopper layer is formed. The forming the etching stopper layer includes, in a first mode, inclining an evaporation source, and depositing a material emitted from the evaporation source while relative positions of the evaporation source and the processing substrate are changed, and in a second mode, inclining the evaporation source in a manner different from the first mode, and depositing the material emitted from the evaporation source while the relative positions of the evaporation source and the processing substrate are changed in an opposite manner of the first mode.Type: ApplicationFiled: April 12, 2023Publication date: October 26, 2023Applicant: Japan Display Inc.Inventors: Hirofumi MIZUKOSHI, Kaichi FUKUDA, Takanobu TAKENAKA, Masaru TAKAYAMA
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Publication number: 20230320142Abstract: According to one embodiment, in a manufacturing method of a display device, a first etching stopper layer and a first sealing layer is formed. A second etching stopper layer and a second sealing layer is formed. A third etching stopper layer and a third sealing layer is formed. An etching rate of the first etching stopper layer is less than an etching rate of the first sealing layer. An etching rate of the second etching stopper layer is less than an etching rate of the second sealing layer. An etching rate of the third etching stopper layer is less than an etching rate of the third sealing layer. A thickness of each of the first etching stopper layer and the second etching stopper layer is greater than a thickness of the third etching stopper layer.Type: ApplicationFiled: March 27, 2023Publication date: October 5, 2023Applicant: Japan Display Inc.Inventors: Hirofumi MIZUKOSHI, Kaichi FUKUDA, Takanobu TAKENAKA, Masaru TAKAYAMA
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Publication number: 20230309340Abstract: According to one embodiment, a display device includes a lower electrode, a rib formed of an inorganic insulating material, a partition provided on the rib, an organic layer provided on the lower electrode, overlapping the rib, spaced apart from the partition and including a light emitting layer, a sealing layer formed of an inorganic insulating material, provided above the organic layer and being in contact with the partition, and an etching stopper layer provided between the rib and the sealing layer, and covering the rib between the organic layer and the partition. The etching stopper layer is formed of a material different from the sealing layer. An etching rate of the etching stopper layer is less than an etching rate of the sealing layer.Type: ApplicationFiled: March 21, 2023Publication date: September 28, 2023Applicant: Japan Display Inc.Inventor: Masaru TAKAYAMA
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Publication number: 20230292555Abstract: According to one embodiment, a display device includes a substrate, a lower electrode, a rib, a partition including a lower portion and an upper portion, an organic layer provided on the lower electrode and including a light emitting layer, and an upper electrode provided on the organic layer and in contact with the lower portion of the partition. The organic layer includes a first end portion located on the rib, and a second end portion located on the rib on an opposite side of the first end portion. A thickness of the upper electrode immediately above the second end portion is greater than a thickness of the upper electrode immediately above the first end portion.Type: ApplicationFiled: February 14, 2023Publication date: September 14, 2023Applicant: Japan Display Inc.Inventor: Masaru TAKAYAMA
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Publication number: 20220223669Abstract: According to one embodiment, a display device includes a second insulating layer having a first opening and a second opening, a partition disposed on the second insulating layer, a first organic layer, a first upper electrode. The partition includes a first layer formed of a metal material and including a first side surface and a second side, and a second layer including a bottom surface. The first upper electrode is in contact with the first side surface, the bottom surface extends from the first side surface toward the first opening and extends from the second side surface toward the second opening. A lower portion of the second layer has an inverted tapered shape whose width increases as it is closer to top from the bottom surface.Type: ApplicationFiled: December 22, 2021Publication date: July 14, 2022Applicant: Japan Display Inc.Inventor: Masaru TAKAYAMA
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Patent number: 7334495Abstract: There is provided a resin gear 1 capable of improving the strength of a key receiving portion, which is engageable with a key of a driving shaft, to prevent the key receiving portion from being broken by external force applied during rotation. In the resin gear 1, an outside rim 6 is connected to an inside hub 4 by a web 7 in radial directions. On the side of one end of the hub 4, a key receiving portion 10 for engaging a key of a driving shaft 2 is formed. The key receiving portion 10 has a side wall 1 for preventing relative rotation of the key 8 to the hub 4, and a bottom wall 12 for allowing the key 8 and hub 4 from being positioned in directions parallel to the driving shaft 2.Type: GrantFiled: April 1, 2004Date of Patent: February 26, 2008Assignee: Enplas CorporationInventor: Masaru Takayama
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Publication number: 20040194566Abstract: There is provided a resin gear 1 capable of improving the strength of a key receiving portion, which is engageable with a key of a driving shaft, to prevent the key receiving portion from being broken by external force applied during rotation. In the resin gear 1, an outside rim 6 is connected to an inside hub 4 by a web 7 in radial directions. On the side of one end of the hub 4, a key receiving portion 10 for engaging a key of a driving shaft 2 is formed. The key receiving portion 10 has a side wall 1 for preventing relative rotation of the key 8 to the hub 4, and a bottom wall 12 for allowing the key 8 and hub 4 from being positioned in directions parallel to the driving shaft 2.Type: ApplicationFiled: April 1, 2004Publication date: October 7, 2004Inventor: Masaru Takayama
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Patent number: 4938308Abstract: An inertial energy storage device for vehicles in which heretofore completely disregarded inertial energy available when the brakes are applied can be utilized for various useful purposes such as assisting a driver in raising the stand of a motorcycle or starting the engine of an automotive vehicle.Type: GrantFiled: September 8, 1988Date of Patent: July 3, 1990Inventor: Masaru Takayama