Patents by Inventor Katsumasa Yamazaki
Katsumasa Yamazaki 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: 11678508Abstract: A display includes a display panel, a shock dispersion layer, a strain relaxation layer, and a shock absorption layer. The shock dispersion layer is provided on a light-extraction side of the display panel and has a Young's modulus of 50 GPa or greater. The strain relaxation layer is provided between the shock dispersion layer and the display panel and has a Young's modulus lower than the Young's modulus of the shock dispersion layer. The shock absorption layer is provided between the strain relaxation layer and the display panel and has a storage modulus of 10 kPa or greater and 1 MPa or less at a room temperature.Type: GrantFiled: March 15, 2021Date of Patent: June 13, 2023Assignee: JOLED INC.Inventors: Takahiro Seki, Katsumasa Yamazaki
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Publication number: 20220199454Abstract: A conveyance hand which conveys an object, includes a base, and a plurality of supports arranged on the base and configured to support the object. The plurality of supports include a first attraction pad configured to attract the object, and a second attraction pad configured to attract the object by a force weaker than the first attraction pad.Type: ApplicationFiled: December 10, 2021Publication date: June 23, 2022Inventors: Katsumasa Yamazaki, Hitoshi Sato, Hideo Tanaka
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Publication number: 20210288287Abstract: A display includes a display panel, a shock dispersion layer, a strain relaxation layer, and a shock absorption layer. The shock dispersion layer is provided on a light-extraction side of the display panel and has a Young's modulus of 50 GPa or greater. The strain relaxation layer is provided between the shock dispersion layer and the display panel and has a Young's modulus lower than the Young's modulus of the shock dispersion layer. The shock absorption layer is provided between the strain relaxation layer and the display panel and has a storage modulus of 10 kPa or greater and 1 MPa or less at a room temperature.Type: ApplicationFiled: March 15, 2021Publication date: September 16, 2021Applicant: JOLED INC.Inventors: Takahiro SEKI, Katsumasa YAMAZAKI
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Patent number: 10964898Abstract: A display includes a display panel and a first protection sheet. The display panel has flexibility and a light output face. The first protection sheet is provided on the light output face and includes a first shock dispersion layer, a first strain relaxation layer, and a first shock absorption layer. The first shock dispersion layer includes a flexible reinforced-glass member, a flexible hard-coat film, or a flexible double-sided hard-coat film. The first strain relaxation layer includes a wet-laminated layer or a dry-laminated layer that is in close contact with a surface of the first shock dispersion layer adjacent to the display panel. The first shock absorption layer includes a gel layer having a thickness of submillimeter order or greater. The first shock absorption layer, the first strain relaxation layer, and the first shock dispersion layer are laminated in this order from the light output face of the display panel.Type: GrantFiled: July 29, 2019Date of Patent: March 30, 2021Assignee: JOLED INC.Inventors: Takahiro Seki, Katsumasa Yamazaki
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Publication number: 20200044170Abstract: A display includes a display panel and a first protection sheet. The display panel has flexibility and a light output face. The first protection sheet is provided on the light output face and includes a first shock dispersion layer, a first strain relaxation layer, and a first shock absorption layer. The first shock dispersion layer includes a flexible reinforced-glass member, a flexible hard-coat film, or a flexible double-sided hard-coat film. The first strain relaxation layer includes a wet-laminated layer or a dry-laminated layer that is in close contact with a surface of the first shock dispersion layer adjacent to the display panel. The first shock absorption layer includes a gel layer having a thickness of submillimeter order or greater. The first shock absorption layer, the first strain relaxation layer, and the first shock dispersion layer are laminated in this order from the light output face of the display panel.Type: ApplicationFiled: July 29, 2019Publication date: February 6, 2020Applicant: JOLED INC.Inventors: Takahiro SEKI, Katsumasa YAMAZAKI
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Publication number: 20090141391Abstract: Embodiments of the present invention help to precisely control the clearance between a head and disk for the pressure without using a barometric sensor. In an embodiment of the present invention, an HDD determines a clearance from variations in operational parameters, and further determines a variation in pressure by deducting the clearance variation caused by a variation in temperature from the clearance. When the HDD controls the clearance in accordance with the pressure change, the HDD checks for head-disk contact. The accuracy and reliability in pressure measurement (clearance measurement) using operational parameters are not high. Therefore, confirming the pressure measurement by the presence or absence of head-disk contact eliminates head-disk contact in the following read/write operation to attain a securer margin for the clearance.Type: ApplicationFiled: October 30, 2008Publication date: June 4, 2009Inventors: Kenichi Kuramoto, Masayuki Kurita, Yoshihiko Maeda, Hidetsugu Tanaka, Akihiro Sera, Katsumasa Yamazaki
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Patent number: 6777175Abstract: A silver halide photographic material for direct observation comprising a support having on one side of the support, (a) a photosensitive layer comprising a silver halide emulsion; and (b) a non-photosensitive layer, wherein the photographic material comprises at least one oil-soluble dye having a maximum absorption wavelength of a spectral reflection density curve in a range of 540 to 580 nm and exhibiting an absorption density at 440 nm of not more than ¼ of an absorption density at the maximum absorption wavelength.Type: GrantFiled: February 3, 2003Date of Patent: August 17, 2004Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Toyoki Nishijima
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Publication number: 20030215761Abstract: A silver halide photographic material for direct observation comprising a support having on one side of the support, (a) a photosensitive layer comprising a silver halide emulsion; and (b) a non-photosensitive layer, wherein the photographic material comprises at least one oil-soluble dye having a maximum absorption wavelength of a spectral reflection density curve in a range of 540 to 580 nm and exhibiting an absorption density at 440 nm of not more than ¼ of an absorption density at the maximum absorption wavelength.Type: ApplicationFiled: February 3, 2003Publication date: November 20, 2003Applicant: KONICA CORPORATIONInventors: Katsumasa Yamazaki, Toyoki Nishijima
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Patent number: 6174658Abstract: Disclosed is a silver halide photographic light sensitive material which has each of at least one silver halide photographic light sensitive emulsion layer and non-lightsensitive hydrophilic colloid layer, and solid fine particles of compound demonstrating fluorescent whitening effect in at least one of the silver halide photographic light sensitive emulsion layer and non-lightsensitive hydrophilic colloid layer. A silver halide photographic light sensitive material having an image excellent in sharpness and improved in whiteness and bright value of print is provided.Type: GrantFiled: November 3, 1998Date of Patent: January 16, 2001Assignee: Konica CorporationInventor: Katsumasa Yamazaki
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Patent number: 6174660Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least a light-sensitive silver halide emulsion layer containing a light-sensitive silver halide emulsion and at least a nonlight-sensitive layer, wherein said silver halide photographic light-sensitive material contains a compound represented by the following formula (1) and said silver halide photographic light-sensitive material further contains a vinylsulfone group containing hardener. HOCH2(CHOH)mCH2OH Formula (1) wherein m represents an integer of 0 to 6.Type: GrantFiled: July 16, 1999Date of Patent: January 16, 2001Assignee: Konica CorporationInventors: Takesi Nakamura, Katsumasa Yamazaki
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Patent number: 5914224Abstract: A silver halide photographic light-sensitive material is disclosed. It comprising at least one light-sensitive silver halide emulsion layer and at least one non-light-sensitive layer on a support and the non-light-sensitive layer contains porous fine particles of 400 mg per 1 m.sup.2 or more and the material is hardened utilizing at least one of vinyl sulfone hardener, carboxyl-activating hardener or polymeric hardener.Type: GrantFiled: October 1, 1997Date of Patent: June 22, 1999Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Takesi Nakamura
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Patent number: 5364753Abstract: There is provided a silver halide color photographic light-sensitive material improved in sensitivity, color reproduction and image lasting quality.Type: GrantFiled: September 9, 1992Date of Patent: November 15, 1994Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Shuichi Sugita, Shigeto Hirabayashi
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Patent number: 5284742Abstract: A silver halide color photographic light-sensitive material is disclosed, which gives a color image excellent in the light-fastness and color reproducibility. The light-sensitive material comprises a support and a silver halide emulsion layer, and the emulsion layer contains a yellow dye-forming coupler represented by Formula Y-I and a compound represented by Formula I: ##STR1## wherein R.sup.1 is an alkyl group or a cycloalkyl group; R.sup.2 is an alkyl group, cycloalkyl group, an acyl group or an aryl group; R.sup.3 is a substituent; n is 0 or 1; X.sup.1 is a substituent capable of splitting off upon coupling reaction with the oxidation product of a color developing agent; and Y.sup.1 is an organic group, ##STR2## wherein R.sub.A and R.sub.B are independently an alkyl group, a cycloalkyl group or an alkenyl group; and R.sub.C and R.sub.D are independently a hydrogen atom, an alkyl group, a cycloalkyl group or an alkenyl group.Type: GrantFiled: June 19, 1992Date of Patent: February 8, 1994Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Shigeto Hirabayashi
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Patent number: 5275926Abstract: There is provided a silver halide color photographic light-sensitive material which is improved in sensitivity, fog and resistance to formalin, and capable of providing photoprins of the same hue irrespective of the type of a printer employed.Type: GrantFiled: September 11, 1992Date of Patent: January 4, 1994Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
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Patent number: 5270156Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein at least one of green-sensitive silver halide emulsion layers contains at least one of magenta couplers represented by Formula M-I and at least one of compounds capable of releasing a development inhibitor or a precursor of a development inhibitor, upon reaction with oxidized products of a development agent, represented by Formula D-I; ##STR1## wherein Z represents a group consisting of a non-metal atoms necessary to form a nitrogen containing heterocyclic ring, provided, the ring formed by the Z may have a substituent; X represents a hydrogen atom or a group releasable upon reaction with an oxidized product of a color developing agents; and R represents a hydrogen atom or a substituent, ##STR2## wherein R.sub.1 represents an alkyl group, R.sub.Type: GrantFiled: August 28, 1992Date of Patent: December 14, 1993Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
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Patent number: 5252446Abstract: There is provided a silver halide color photographic light-sensitive material whose green-sensitive and red-sensitive layers are improved in sensitivity and which involves little variation among printers.Type: GrantFiled: September 9, 1992Date of Patent: October 12, 1993Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
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Patent number: 5238797Abstract: Disclosed is a silver halide color photographic light sensitive material comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein at least one of green-sensitive silver halide emulsion layers contains at least one of colored magenta couplers represented by Formula CM-1 and at least one of dyes having absorption maximum at 590 nm to 610 nm is contained in at least one of layers selected from the layers consisting of silver halide emulsion layers and photographic constitution layers; ##STR1## wherein R.sub.1 represents a substituent, R.sub.2 represents an acylamino group, a sulfonamide group, an imide group, a carbamoyl group, a sulfamoyl group, an alkoxyl group, an alkoxycarbonyl group, an alkoxycarbonylamino group, R.sub.3 represents a halogen atom, an alkoxy group, m is an integer of 0 to 5, n is an integer of 0 to 4.Type: GrantFiled: July 9, 1992Date of Patent: August 24, 1993Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
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Patent number: 5236819Abstract: A photographic material having a support and a light sensitive silver halide emulsion layer which contains a magenta coupler represented by Formula M-I, a compound represented by Formula A and a compound represented by Formula B: ##STR1## wherein the substituents are as defined in the specification.Type: GrantFiled: May 14, 1991Date of Patent: August 17, 1993Assignee: Konica CorporationInventors: Kenji Kadokura, Katsumasa Yamazaki, Shigeto Hirabayashi
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Patent number: 4762778Abstract: A silver halide color photographic light-sensitive material has a support and at least one silver halide emulsion layer. At least one of the silver halide emulsion layers has a group of substantially monodisperse core/shell type silver halide grains having a value of not greater than 0.15. This value is obtained by dividing a standard deviation value by the average grain size value. The substantially monodisperse core/shell-type silver halide grains have shells from 0.01 to 0.1 in thickness. The silver halide grains include a silver iodide in the core in an amount of less than 8 mole % and a silver iodide in the shell of from 0.1 mole % to 6 mole %. A development inhibitor releasing compound having a relative development inhibitability of not less than 1 is also present in the emulsion layer.Type: GrantFiled: June 10, 1987Date of Patent: August 9, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Katsumasa Yamazaki, Toshihiko Yagi, Kenji Michiue, Sohei Goto, Yoshiharu Mochizuki
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Patent number: H1429Abstract: The present invention offers a silver halide photographic light-sensitive material which is excellent in dye image storage stability, which undergoes little change in the photographic performance thereof between initiation and completion of continuous processing, which has excellent color reproducibility and sufficient color developability. The present invention comprises a silver halide photographic light-sensitive material having at least one silver halide emulsion layer containing a dye-forming coupler on the support, wherein said silver halide emulsion layer contains at least one compound having an ester group and an oxidation potential of not more than 1800 mV.Type: GrantFiled: June 19, 1992Date of Patent: April 4, 1995Assignee: Konica CorporationInventors: Motoi Nishimura, Hirokazu Sato, Katsumasa Yamazaki, Shigeto Hirabayashi