Patents by Inventor Kazunori Kawamura
Kazunori Kawamura 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: 20240002313Abstract: [Object] Provided are a 11C-labeled acyclic retinoid that can be synthesized in a short time with a high yield and can be suitably used for PET for elucidating intracerebral kinetics, a PET probe using it, and methods for producing them. [Solution] The 11C-labeled acyclic retinoid of the present invention is characterized by being represented by the following chemical formula (a). This compound can be produced by a coupling step of cross-coupling a methyl iodide labelled with 11C and the following organotin compound (b) (provided that in the formula, R1 and R2 represent alkyl groups which may have a branch) in an aprotic solvent in the presence of a palladium complex, a phosphine ligand, and a cuprous halide.Type: ApplicationFiled: November 18, 2021Publication date: January 4, 2024Applicant: NATIONAL CENTER FOR GERIATRICS AND GERONTOLOGYInventors: Masaaki SUZUKI, Kengo ITO, Yasuyuki KIMURA, Aya OGATA, Hiroshi IKENUMA, Tetsuya KIMURA, Nobuyuki KIMURA, Hiroko KOYAMA, Hideki ISHII, Meiei CHO, Kazunori KAWAMURA, Takafumi MINAMIMOTO, Yuji NAGAI, Hiroshi KATSUKI
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Patent number: 11814783Abstract: Provided is a synthetic leather in which the occurrence of ease wrinkles can be inhibited or reduced. This synthetic leather comprises a cloth (10), and a resin layer (20) laminated on the cloth (10). The cloth (10) is a tricot knitted fabric knitted with front yarn, middle yarn, and back yarn, and having a nap (12). The tricot knitted fabric has a cord stitch structure knitted with the front yarn, a denbigh stitch structure or cord stitch structure knitted with the middle yarn, and an inlay structure or cord stitch structure knitted with the back yarn. The nap (12) is formed by napping a sinker loop side of the tricot knitted fabric.Type: GrantFiled: February 11, 2021Date of Patent: November 14, 2023Assignee: SEIREN CO., LTD.Inventor: Kazunori Kawamura
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Publication number: 20220175973Abstract: A method for producing a radiopharmaceutical, the method capable of maintaining a radioactive compound retaining a chemical structure and radioactivity at the time of production and after the production, and maintaining a usable period of a radiopharmaceutical; and a radiopharmaceutical are provided. The method for producing a radiopharmaceutical that has a radioactive component containing a radioactive dithiosemicarbazone copper complex includes: a stabilization step of adding a stabilizing agent containing at least one compound selected from the group consisting of ascorbic acid, methionine, sodium ascorbate, mannitol, and butylhydroxyanisole to a solution containing the radioactive component; and a filtration step of filtering the solution containing the radioactive component or a precursor thereof with a sterilization filter. In the radiopharmaceutical, a concentration of the radioactive component is 200 MBq/mL or more in terms of radioactivity concentrations.Type: ApplicationFiled: February 14, 2020Publication date: June 9, 2022Inventors: Yukie Yoshii, Meiei Cho, Kazunori Kawamura, Hisashi Suzuki, Hiroki Hashimoto
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Publication number: 20210254277Abstract: Provided is a synthetic leather in which the occurrence of ease wrinkles can be inhibited or reduced. This synthetic leather comprises a cloth (10), and a resin layer (20) laminated on the cloth (10). The cloth (10) is a tricot knitted fabric knitted with front yarn, middle yarn, and back yarn, and having a nap (12). The tricot knitted fabric has a cord stitch structure knitted with the front yarn, a denbigh stitch structure or cord stitch structure knitted with the middle yarn, and an inlay structure or cord stitch structure knitted with the back yarn. The nap (12) is formed by napping a sinker loop side of the tricot knitted fabric.Type: ApplicationFiled: February 11, 2021Publication date: August 19, 2021Inventor: Kazunori KAWAMURA
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Patent number: 10859026Abstract: In the communication interruption state in which the transmission of a drive control command value DUTY from an engine control unit (ECU) 1 to a fuel pump driver (FPD) 2 is disabled, the FPD 2 is configured so as to drive a fuel pump 4 by using the maximum command value DTYMAX (100%) as a drive control command value DUTY. A stop state of the fuel pump 4 is maintained even if the drive control command value DUTY is the maximum command value DTYMAX when an ignition switch 21 is in the OFF State so as to have stopped the fuel pump 4, while the fuel pump 4 is driven when the ignition switch 21 is in the ON state and the drive control command value DUTY is the maximum command value DTYMAX.Type: GrantFiled: December 5, 2018Date of Patent: December 8, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Shoji Sasaki, Kazunori Kawamura, Kazuhiro Kobayashi, Akira Kobayashi
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Patent number: 10823103Abstract: In the communication interruption state in which the transmission of a drive control command value DUTY from an engine control unit (ECU) 1 to a fuel pump driver (FPD) 2 is disabled, the FPD 2 is configured so as to drive a fuel pump 4 by using the maximum command value DTYMAX (100%) as a drive control command value DUTY. A stop state of the fuel pump 4 is maintained even if the drive control command value DUTY is the maximum command value DTYMAX when an ignition switch 21 is in the OFF State so as to have stopped the fuel pump 4, while the fuel pump 4 is driven when the ignition switch 21 is in the ON state and the drive control command value DUTY is the maximum command value DTYMAX.Type: GrantFiled: December 5, 2018Date of Patent: November 3, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Shoji Sasaki, Kazunori Kawamura, Kazuhiro Kobayashi, Akira Kobayashi
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Publication number: 20190177910Abstract: Provided is a nubuck-like fabric 100 having a nubuck-like distinct moist feel and nubuck-like distinctive nap that are close to those of natural leather and also having superior abrasion resistance with a woven or knitted fabric used for a base material. The nubuck-like fabric 100 includes a flexible sheet 100? formed by application of a resin 20 to the woven or knitted fabric. The flexible sheet 100? includes a filled portion 40 that includes filaments 10 and the resin 20, and a non-filled portion 30 including spaces. The flexible sheet 100? also includes a nap part 50 at its surface, and the nap part 50 has a thickness ranging from 0.01 to 0.4 mm, inclusive.Type: ApplicationFiled: December 5, 2018Publication date: June 13, 2019Inventors: Kazunori Kawamura, Naohiro Wada
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Publication number: 20190170079Abstract: In the communication interruption state in which the transmission of a drive control command value DUTY from an engine control unit (ECU) 1 to a fuel pump driver (FPD) 2 is disabled, the FPD 2 is configured so as to drive a fuel pump 4 by using the maximum command value DTYMAX (100%) as a drive control command value DUTY. A stop state of the fuel pump 4 is maintained even if the drive control command value DUTY is the maximum command value DTYMAX when an ignition switch 21 is in the OFF State so as to have stopped the fuel pump 4, while the fuel pump 4 is driven when the ignition switch 21 is in the ON state and the drive control command value DUTY is the maximum command value DTYMAX.Type: ApplicationFiled: December 5, 2018Publication date: June 6, 2019Applicant: HONDA MOTOR CO., LTD.Inventors: Shoji Sasaki, Kazunori Kawamura, Kazuhiro Kobayashi, Akira Kobayashi
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Patent number: 10304978Abstract: A compound solar cell having a higher conversion efficiency and a method for producing the compound solar cell at lower costs are provided. The compound solar cell includes a CIGS light absorbing layer, a buffer layer and a front side electrode layer provided on a substrate. An interface layer made of a mixed crystal compound having a composition represented by the following general formula is provided between the CIGS light absorbing layer and the buffer layer: Zn(Ox,S1-x) . . . (1), wherein X is 0.9<X?1.Type: GrantFiled: June 18, 2013Date of Patent: May 28, 2019Assignee: NITTO DENKO CORPORATIONInventors: Seiki Teraji, Kazunori Kawamura, Hiroto Nishii, Taichi Watanabe, Yusuke Yamamoto
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Patent number: 9947808Abstract: In order to provide a CIGS compound solar cell with a high conversion efficiency, a CIGS compound solar cell including a rear electrode layer, a CIGS light absorbing layer, a buffer layer, and a transparent electrode layer in this order over a substrate is configured such that the buffer layer comprises a mixed crystal of a Group IIa metal and zinc oxide, and characteristics of the mixed crystal as shown by X-ray diffraction satisfy the following formula (1): 0.5?A/(A+B+C)<1??(1) (where none of A, B, C are 0) A: peak intensity at plane (002) B: peak intensity at plane (100) C: peak intensity at plane (101).Type: GrantFiled: February 25, 2013Date of Patent: April 17, 2018Assignee: NITTO DENKO CORPORATIONInventors: Seiki Teraji, Kazunori Kawamura, Hiroto Nishii, Taichi Watanabe
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Publication number: 20170342658Abstract: Provided is a fabric to which an uneven-surface design which is fine and has flexibility and wear resistance is imparted. The fabric has a polyurethane resin applied portion on at least a portion of a surface side of the fabric, and an uneven-surface design shaped on the polyurethane resin applied portion. The polyurethane resin applied portion is a region in which a polyurethane resin which is applied is present, and the polyurethane resin permeates between the fibers at least in a surface portion of the fabric such that a surface of the fabric is formed by the polyurethane resin and the fibers. In the polyurethane resin applied portion, an application depth of the polyurethane resin is 50 to 200 ?m, a filling ratio of the polyurethane resin is 15% to 45%, and a filling ratio of the fibers of the fabric is 50% to 80%.Type: ApplicationFiled: December 10, 2015Publication date: November 30, 2017Inventor: Kazunori KAWAMURA
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Publication number: 20170342657Abstract: Provided is a fabric having a novel design in which an uneven-surface design is partially formed by embossing. A polyurethane resin is applied to the surface of the fabric having, on the surface, a low fineness portion and a high fineness portion having a higher single fiber fineness than that of the low fineness portion, the fabric is dried; and embossing is performed on the surface of the fabric. By performing the embossing, while an uneven-surface design is not imparted to the high fineness portion by the embossing and a non-uneven-surface design portion 3 is formed, the uneven-surface design is imparted to the low fineness portion by the embossing and an uneven-surface design portion 2 is formed.Type: ApplicationFiled: December 10, 2015Publication date: November 30, 2017Inventors: Takuro IZUMI, Kazunori KAWAMURA
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Patent number: 9614111Abstract: The present invention provides a CIGS film substantially free from oxidation of a front surface thereof and a CIGS solar cell employing the CIGS film and substantially free from reduction and variation in conversion efficiency. The CIGS film, which is used as a light absorbing layer for the CIGS solar cell, includes: a first region having a Ga/(In+Ga) ratio progressively reduced along its thickness toward a predetermined first thickness position from a back surface of the CIGS film; a second region having a Ga/(In+Ga) ratio progressively increased along its thickness toward a predetermined second thickness position from the first region; and a third region provided on the second region and having a Ga/(In+Ga) ratio progressively reduced along its thickness toward the front surface of the CIGS film.Type: GrantFiled: January 24, 2014Date of Patent: April 4, 2017Assignee: NITTO DENKO CORPORATIONInventors: Seiki Teraji, Hiroto Nishii, Taichi Watanabe, Yusuke Yamamoto, Kazunori Kawamura, Takashi Minemoto, Jakapan Chantana
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Patent number: 9431558Abstract: A CIGS type compound solar cell excellent in both productivity and conversion efficiency is provided. The CIGS type solar cell includes a CIGS light absorbing layer, a buffer layer and a transparent electrode layer provided in this order on a substrate. The buffer layer is made of a mixed crystal compound containing ZnO, MgO and ZnS being present at specific ranges respectively.Type: GrantFiled: January 24, 2014Date of Patent: August 30, 2016Assignee: NITTO DENKO CORPORATIONInventors: Seiki Teraji, Kazunori Kawamura, Yusuke Yamamoto, Hiroto Nishii, Taichi Watanabe
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Patent number: 9234473Abstract: An air-fuel ratio control apparatus for an internal combustion engine includes an air-fuel ratio detector, a fuel amount controller, an operational state parameter acquiring device, an extractor, a failure determination device, a variation state parameter calculator, and a determination stopping device. The operational state parameter acquiring device is configured to acquire at least one operational state parameter. The failure determination device is configured to execute failure determination of determining a failure in an air-fuel ratio control system of the internal combustion engine based on a specific frequency component extracted by the extractor. The variation state parameter calculator is configured to calculate a variation state parameter. The determination stopping device is configured to stop the failure determination if the variation state parameter calculated by the variation state parameter calculator is equal to or larger than a predetermined threshold value.Type: GrantFiled: November 2, 2012Date of Patent: January 12, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Tooru Sekiguchi, Atsuhiro Miyauchi, Takeshi Aoki, Seiji Watanabe, Kazunori Kawamura, Michinori Tani
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Publication number: 20160005912Abstract: The present invention provides a CIGS film production method which ensures that a CIGS film excellent in conversion efficiency can be produced at lower costs with higher reproducibility, and a CIGS solar cell production method using the CIGS film production method. The CIGS film production method includes: a stacking step of stacking an (A) layer containing indium, gallium and selenium and a (B) layer containing copper and selenium in this order in a solid phase over a substrate while heating at a temperature of higher than 250° C. and not higher than 400° C.; and a heating step of further heating the resulting stack of the (A) layer and the (B) layer to melt a compound of copper and selenium in the (B) layer into a liquid phase, whereby copper is diffused from the (B) layer into the (A) layer to cause crystal growth to provide a CIGS film.Type: ApplicationFiled: January 24, 2014Publication date: January 7, 2016Applicant: NITTO DENKO CORPORATIONInventors: Hiroto NISHII, Taichi WATANABE, Seiki TERAJI, Kazunori KAWAMURA, Takashi MINEMOTO, Jakapan CHANTANA, Masashi MURATA
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Publication number: 20160005893Abstract: A CIGS type compound solar cell excellent in both productivity and conversion efficiency is provided. The CIGS type solar cell includes a CIGS light absorbing layer, a buffer layer and a transparent electrode layer provided in this order on a substrate. The buffer layer is made of a mixed crystal compound containing ZnO, MgO and ZnS being present at specific ranges respectively.Type: ApplicationFiled: January 24, 2014Publication date: January 7, 2016Applicant: NITTO DENKO CORPORATIONInventors: Seiki Teraji, Kazunori Kawamura, Yusuke Yamamoto, Hiroto Nishii, Taichi Watanabe
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Publication number: 20150380596Abstract: The CIGS film production method includes: a stacking step of stacking a layer (A) containing indium, gallium and selenium and a layer (B) containing copper and selenium, in this order in a solid phase over a substrate; and a heating step of heating the resulting stack of the layer (A) and the layer (B) to melt the layer (B) into a liquid phase, whereby copper is diffused from the layer (B) into the layer (A) to cause crystal growth; wherein the layer (A) is formed by repeatedly stacking a gallium selenide film (Y) and an indium selenide film (X) in this order and reducing a thickness ratio (Y/X) between the gallium selenide film (Y) and the indium selenide film (X) as the stacking is repeated.Type: ApplicationFiled: January 24, 2014Publication date: December 31, 2015Applicant: NITTO DENKO CORPORATIONInventors: Hiroto Nishii, Taichi Watanabe, Yusuke Yamamoto, Seiki Teraji, Kazunori Kawamura
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Publication number: 20150380589Abstract: The present invention provides a CIGS film substantially free from oxidation of a front surface thereof and a CIGS solar cell employing the CIGS film and substantially free from reduction and variation in conversion efficiency. The CIGS film, which is used as a light absorbing layer for the CIGS solar cell, includes: a first region having a Ga/(In+Ga) ratio progressively reduced along its thickness toward a predetermined first thickness position from a back surface of the CIGS film; a second region having a Ga/(In+Ga) ratio progressively increased along its thickness toward a predetermined second thickness position from the first region; and a third region provided on the second region and having a Ga/(In+Ga) ratio progressively reduced along its thickness toward the front surface of the CIGS film.Type: ApplicationFiled: January 24, 2014Publication date: December 31, 2015Applicant: NITTO DENKO CORPORATIONInventors: Seiki Teraji, Hiroto Nishii, Taichi Watanabe, Yusuke Yamamoto, Kazunori Kawamura, Takashi Minemoto, Jakapan Chantana
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Publication number: 20150357492Abstract: A CIGS film production method capable of suppressing oxidation of a front surface of a CIGS film, and a CIGS solar cell production method using the CIGS film production method includes the steps of: forming a first region having a Ga/(In+Ga) ratio progressively reduced as the thickness of the first region increases to a predetermined first thickness position from a back surface of the CIGS film; forming a second region having a Ga/(In+Ga) ratio progressively increased as the thickness of the second region increases to a predetermined second thickness position from the first region; and forming a third region on the second region by vapor-depositing Se and In, the third region having a Ga/(In+Ga) ratio progressively reduced toward a front surface of the CIGS film.Type: ApplicationFiled: January 24, 2014Publication date: December 10, 2015Applicant: NITTO DENKO CORPORATIONInventors: Seiki Teraji, Taichi Watanabe, Hiroto Nishii, Yusuke Yamamoto, Kazunori Kawamura, Takashi Minemoto, Jakapan Chantana