Patents by Inventor Kenya Tanaka
Kenya Tanaka 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).
-
Patent number: 11976141Abstract: A polyethylene powder having a limiting viscosity [?] of 2.0 dl/g or more and less than 20.0 dl/g as measured in decalin at 135° C., wherein the polyethylene powder presents a percentage decrease from a specific surface area A measured by the BET method before heating at 120° C. for 5 h to a specific surface area B measured by a BET method after heating at 120° C. for 5 h, ((A?B)/A×100), of 0.1% or more and less than 35%.Type: GrantFiled: February 28, 2020Date of Patent: May 7, 2024Assignee: Asahi Kasei Kabushiki KaishaInventor: Kenya Tanaka
-
Publication number: 20230082972Abstract: Miscellaneous crystals generated in a solution are reduced. A single crystal manufacturing method includes a first heating step of heating the solution so that a temperature of the solution in contact with a side surface of a crucible becomes higher than a temperature of the solution in contact with a bottom surface of the crucible, and a second heating step of heating the solution so that the temperature of the solution in contact with the bottom surface of the crucible becomes higher than the temperature of the solution in contact with the side surface of the crucible.Type: ApplicationFiled: September 6, 2022Publication date: March 16, 2023Inventors: Kenta TAKAO, Daiki FURUKAWA, Kenya TANAKA, Mai ABE, Takashi HASEGAWA, Toru UMENO
-
Publication number: 20220372258Abstract: Provided is a polyethylene powder having a density of 910 kg/m3 or more and less than 935 kg/m3 and an average particle diameter of 50 ?m or more and less than 140 ?m, wherein the polyethylene powder contains a particle having a particle diameter of 60 ?m and a particle having a particle diameter of 100 ?m, the compressive strength at 10% displacement of the particle having a particle diameter of 60 ?m is 2.0 MPa or more and less than 5.0 MPa, and the compressive strength at 10% displacement of the particle having a particle diameter of 60 ?m is 0.5 times or more and less than 1.3 times the compressive strength at 10% displacement of the particle having a particle diameter of 100 ?m.Type: ApplicationFiled: October 19, 2020Publication date: November 24, 2022Applicant: Asahi Kasei Kabushiki KaishaInventor: Kenya Tanaka
-
Publication number: 20220239825Abstract: It is an object to realize high dynamic range rendering of a partial region of interest (ROI) segmented from a captured image. A transmitting apparatus includes a controlling section that controls the acquisition of high dynamic range information as information for use in the high dynamic range rendering of image data of a ROI (Region of interest), and a transmitting section that sends out the image data of the ROI as payload data and sends out ROI information as embedded data.Type: ApplicationFiled: May 19, 2020Publication date: July 28, 2022Inventors: Kenya Tanaka, Yoshiaki Matsubara, Hideyuki Someya
-
Publication number: 20220162355Abstract: A polyethylene powder having a limiting viscosity [?] of 2.0 dl/g or more and less than 20.0 dl/g as measured in decalin at 135° C., wherein the polyethylene powder presents a percentage decrease from a specific surface area A measured by the BET method before heating at 120° C. for 5 h to a specific surface area B measured by a BET method after heating at 120° C. for 5 h, ((A?B)/A×100), of 0.1% or more and less than 35%.Type: ApplicationFiled: February 28, 2020Publication date: May 26, 2022Applicant: Asahi Kasei Kabushiki KaishaInventor: Kenya Tanaka
-
Publication number: 20210032446Abstract: A polyethylene powder having an average particle size of 70 ?m or more and less than 150 ?m, wherein a compressive strength at a time of 10% displacement of particles having a particle size of 60 ?m is 1.2 times or more and less than 2.5 times based on a compressive strength at a time of 10% displacement of particles having a particle size of 100 ?m.Type: ApplicationFiled: March 12, 2019Publication date: February 4, 2021Applicant: Asahi Kasei Kabushiki KaishaInventor: Kenya Tanaka
-
Patent number: 10597796Abstract: An object of the present invention is to provide a polyethylene powder for a fiber which is excellent in the color tone of an obtained article and allows an obtained fiber to be highly drawn, and a fiber and an article made of the polyethylene powder for a fiber. The present invention provides a polyethylene powder for a fiber, wherein the intrinsic viscosity measured at 135° C. in decalin is 10 dL/g or higher and 40 dL/g or lower, the total amount of Al, Mg, Ti, Zr, and Hf is 1.0 ppm or higher and lower than 15 ppm, the amount of a particle having a particle size exceeding 355 ?m is 2.0% by mass or lower, and the amount of a particle having a particle size of 75 ?m or smaller is 3.0% by mass or higher and 50.0% by mass or lower.Type: GrantFiled: April 17, 2015Date of Patent: March 24, 2020Assignee: Asahi Kasei Chemicals CorporationInventors: Kenya Tanaka, Akio Fujiwara
-
Patent number: 10544240Abstract: The present invention provides an ethylene polymer having a viscosity average molecular weight of 100×104 or more and 1,000×104 or less, in which a ratio between an isothermal crystallization time at 125° C. and an isothermal crystallization time at 123° C. obtained under specific isothermal crystallization time measurement conditions is 3.5 or more and 10.0 or less, and a degree of crystallization obtained using a differential scanning calorimeter (DSC) is 40% or more and 75% or less.Type: GrantFiled: January 30, 2018Date of Patent: January 28, 2020Assignee: Asahi Kasei Kabushiki KaishaInventor: Kenya Tanaka
-
Publication number: 20190359740Abstract: The present invention provides an ethylene polymer having a viscosity average molecular weight of 100×104 or more and 1,000×104 or less, in which a ratio between an isothermal crystallization time at 125° C. and an isothermal crystallization time at 123° C. obtained under specific isothermal crystallization time measurement conditions is 3.5 or more and 10.0 or less, and a degree of crystallization obtained using a differential scanning calorimeter (DSC) is 40% or more and 75% or less.Type: ApplicationFiled: January 30, 2018Publication date: November 28, 2019Applicant: Asahi Kasei Kabushiki KaishaInventor: Kenya Tanaka
-
Patent number: 9556380Abstract: A fluorescent material having a composition formula represented as (Gd1-?-?-?L?Ce?Tb?)3+a(Al1-u-vGauScv)5-bO12 (L is at least one element selected from Y and Lu), satisfying the following ranges: 0?a?0.1, 0?b?0.1, 0???0.3, 0.0003???0.005, 0.02???0.2, 0.27?u?0.75, and 0?v?0.02. Preferably, 0<a?0.07, 0<b?0.07, 0<??0.15, 0.0003???0.004, 0.03???0.15, 0.35?u?0.70, and 0?v?0.02.Type: GrantFiled: April 10, 2014Date of Patent: January 31, 2017Assignee: Hitachi Metals, Ltd.Inventors: Kenya Tanaka, Ryouhei Nakamura
-
Publication number: 20160017223Abstract: A fluorescent material having a composition formula represented as (Gd1-?-?-?L?Ce?Tb?)3+a(Al1-u-vGauScv)5-bO12 (L is at least one element selected from Y and Lu), satisfying the following ranges: 0?a?0.1, 0?b?0.1, 0???0.3, 0.0003???0.005, 0.02???0.2, 0.27?u?0.75, and 0?v?0.02. Preferably, 0<a?0.07, 0<b?0.07, 0<??0.15, 0.0003???0.004, 0.03???0.15, 0.35?u?0.70, and 0?v?0.02.Type: ApplicationFiled: April 10, 2014Publication date: January 21, 2016Inventors: Kenya TANAKA, Ryouhei NAKAMURA
-
Publication number: 20150311425Abstract: A method for manufacturing piezoelectric ceramic including the steps of: preparing a raw material so as to contain A, B, Ba and Zr as major constituents in a composition ratio represented by the following formula: (1-s)ABO3-sBaZrO3 (where A is at least one element selected from alkali metals, B is at least one of transition metal elements and includes Nb, 0.06<s?0.15); molding the raw material to obtain a molded body; sintering the molded body in a reducing atmosphere; and subjecting a sintered body obtained at the sintering step to a heat treatment in an oxidative atmosphere.Type: ApplicationFiled: November 27, 2013Publication date: October 29, 2015Inventors: Shuji YAMANAKA, Genei NAKAJIMA, Tomotsugu KATO, Kenya TANAKA, Tomoaki KARAKI
-
Publication number: 20150299903Abstract: An object of the present invention is to provide a polyethylene powder for a fiber which is excellent in the color tone of an obtained article and allows an obtained fiber to be highly drawn, and a fiber and an article made of the polyethylene powder for a fiber. The present invention provides a polyethylene powder for a fiber, wherein the intrinsic viscosity measured at 135° C. in decalin is 10 dL/g or higher and 40 dL/g or lower, the total amount of Al, Mg, Ti, Zr, and Hf is 1.0 ppm or higher and lower than 15 ppm, the amount of a particle having a particle size exceeding 355 ?m is 2.0% by mass or lower, and the amount of a particle having a particle size of 75 ?m or smaller is 3.0% by mass or higher and 50.0% by mass or lower.Type: ApplicationFiled: April 17, 2015Publication date: October 22, 2015Applicant: Asahi Kasei Chemicals CorporationInventors: Kenya Tanaka, Akio Fujiwara
-
Publication number: 20150037535Abstract: The present invention relates to an organic-inorganic composite comprising an inorganic compound particle and a polymer attached to the inorganic compound particle, wherein a molecular weight distribution of the polymer is 2.3 or less, and a content of the inorganic compound particle is 96% by mass or less with respect to a total mass of the organic-inorganic composite. Moreover, the present invention relates to a photonic crystal, an organic-inorganic composite film, a coating material, and a thermoplastic composition comprising the organic-inorganic composite.Type: ApplicationFiled: March 13, 2012Publication date: February 5, 2015Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Mitsuyo Akimoto, Kenya Tanaka
-
Patent number: 8815122Abstract: A polycrystalline scintillator for detecting soft X-rays, which comprises Ce as a light-emitting element and at least Y, Gd, Al, Ga and O, and has a garnet crystal structure, and a composition represented by the general formula of (Y1-x-zGdxCez)3+a(Al1-uGau)5-aO12, wherein 0?a?0.1, 0.15?x?0.3, 0.002?z?0.015, and 0.35?u?0.55, with 0.05-1 ppm by mass of Fe and 0.5-10 ppm by mass of Si by outer percentage, a ratio ?50/?100 of 3 or more, wherein ?50 is an absorption coefficient of X-rays at 50 keV, and ?100 is an absorption coefficient of X-rays at 100 keV, and afterglow of 800 ppm or less after 3 ms from the termination of X-ray irradiation.Type: GrantFiled: October 25, 2011Date of Patent: August 26, 2014Assignee: Hitachi Metals, Ltd.Inventors: Ryouhei Nakamura, Kenya Tanaka, Shunsuke Ueda
-
Publication number: 20130337161Abstract: An organic-inorganic composite film containing an organic-inorganic composite including an inorganic compound particle and a polymer bonded to the inorganic compound particles. A percentage of voids in the film is 3 to 70 volume % with reference to a volume of the film.Type: ApplicationFiled: February 20, 2012Publication date: December 19, 2013Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Mitsuyo Akimoto, Kenya Tanaka
-
Publication number: 20130043430Abstract: A polycrystalline scintillator for detecting soft X-rays, which comprises Ce as a light-emitting element and at least Y, Gd, Al, Ga and O, and has a garnet crystal structure, and a composition represented by the general formula of (Y1?x?zGdxCez)3+a(Al1?uGau)5?aO12, wherein 0?a?0.1, 0.15?x?0.3, 0.002?z?0.015, and 0.35?u?0.55, with 0.05-1 ppm by mass of Fe and 0.5-10 ppm by mass of Si by outer percentage, a ratio ?50/?100 of 3 or more, wherein ?50 is an absorption coefficient of X-rays at 50 keV, and ?100 is an absorption coefficient of X-rays at 100 keV, and afterglow of 800 ppm or less after 3 ms from the termination of X-ray irradiation.Type: ApplicationFiled: October 25, 2011Publication date: February 21, 2013Applicant: HITACHI METALS, LTD.Inventors: Ryouhei Nakamura, Kenya Tanaka, Shunsuke Ueda
-
Patent number: 5677681Abstract: If a code is transmitted at a first transmission rate, a base station modulates the entirety of the code, namely a preamble, a synchronizing signal and a call-data, by two values and transmits them at the first transmission rate. If the code is transmitted at a second transmission rate, which is double the first transmission rate, the base station modulates the preamble and the logically inverted synchronizing signal (obtained by inverting the "1", "0" logic of the original synchronizing signal) by the two values, transmits them at the first transmission rate, modulates the call-data by four values and transmits it at the second transmission rate. As a result, it suffices to provide the pager with a single common preamble detector and a single common synchronizing detector, irrespective of the transmission rate.Type: GrantFiled: May 23, 1995Date of Patent: October 14, 1997Assignee: Fujitsu LimitedInventors: Kenya Tanaka, Yasuhiro Yokota
-
Patent number: 5140308Abstract: A mobile radio system has an upward and downward control channel for controlling a call-out transmitted from a mobile terminal station, independently from a communication channel. The system detects an abnormal state of an automobile equipped in the mobile terminal station, and automatically transmits a call-out signal through the upward control channel to said base station when the abnormal state is detected. The abnormal state occurs when a door is opened, for example. It receives a response signal via the downward control channel from a base station, the response signal corresponding to the call-out signal of the terminal station, and produces an alarm sound when identification signal ID of the terminal station is detected from the response signal. Thus, the abnormal state of the automobile can be indicated by the alarm sound outputted from the portable receiver, thereby preventing the automobile from theft.Type: GrantFiled: January 23, 1990Date of Patent: August 18, 1992Assignee: Fujitsu LimitedInventor: Kenya Tanaka