Patents by Inventor Tomoyuki Okamura

Tomoyuki Okamura 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: 11945630
    Abstract: An air-permeable packaging material which includes a non-perforated polyolefin layer having a thickness of 3 ?m to 18 ?m and constituted of at least one polymer selected from the group consisting of polypropylene and polyethylene and a net-shaped reinforcing layer; a package which includes the air-permeable packaging material, the non-perforated polyolefin layer facing outward, and which contains an oxygen scavenger, a desiccant, a deodorant, an insect repellent, or a fragrance; and a method for producing the package.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: April 2, 2024
    Assignee: Eneos Corporation
    Inventors: Tomoyuki Okamura, Keiichi Ootsubo, Masahiro Wakayama
  • Patent number: 11901848
    Abstract: A rotating electric machine includes a neutral busbar and a temperature sensor. The neutral busbar has a main body and a bent part that retains the temperature sensor therein. The main body has first and second parts each of which has one or more connection terminals formed therein. The bent part is formed between a circumferential end portion of the first part and a circumferential end portion of the second part. In the first part, there is formed, between the circumferential end portion of the first part and a closest connection terminal formed in the first part to the bent part, a first extending portion that extends axially or radially. Similarly, in the second part, there is formed, between the circumferential end portion of the second part and a closest connection terminal formed in the second part to the bent part, a second extending portion that extends axially or radially.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: February 13, 2024
    Assignee: DENSO CORPORATION
    Inventors: Tomoyuki Okamura, Kensuke Hirai, Tadahiro Kurasawa
  • Patent number: 11784530
    Abstract: A rotating electric machine includes an armature and a busbar unit. The armature includes an annular armature core and a multi-phase armature coil wound on the armature core. The busbar unit is configured to connect winding end portions of the armature coil which are arranged apart from one another in a circumferential direction of the armature. Moreover, the busbar unit is fixed to a back yoke of the armature core by a plurality of pins.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: October 10, 2023
    Assignee: DENSO CORPORATION
    Inventors: Kensuke Hirai, Tomoyuki Okamura, Tadahiro Kurasawa
  • Publication number: 20220199063
    Abstract: The sound absorbing material 50 comprises: a felt-like fiber body 51 which includes 15 to 70% by weight of fine fibers with a fineness of 1 denier or less, 20 to 60% by weight of hollow fibers having inner cavities, and 10 to 40% by weight of binder fibers that join the fibers together; and a nonwoven fabric 52 that is laminated on a surface of the felt-like fiber body 51. The nonwoven fabric 52 includes a plurality of drawn long fibers arranged and oriented in one direction. An average diameter of the plurality of long fibers is in the range of 1 to 4 ?m. The sound absorbing material 50 has a thickness in the range of 8 to 45 mm and a bulk density of 20 kg/m3 or less.
    Type: Application
    Filed: March 19, 2020
    Publication date: June 23, 2022
    Applicant: ENEOS CORPORATION
    Inventors: Kunihiko IBAYASHI, Tomoyuki OKAMURA, Hirofumi AIZONO, Takashi OKABE, Masako KOSHIKAWA
  • Patent number: 11325342
    Abstract: A substrate 2 of an adhesive tape 1 includes a mesh structure made of thermoplastic resin. The mesh structure has a structure in which multiple first fibers drawn in a first direction corresponding to a length direction of the adhesive tape and multiple second fibers drawn in a second direction corresponding to a width direction of the adhesive tape are layered or woven. (a) A first fiber has a thickness of 0.04 mm or less, and a width of 0.6 mm or less, (b) a second fiber has a thickness greater than that of the first fiber, and a width greater than or equal to that of the first fiber, (c) the mesh structure has a tensile strength in the first direction of from 130 to 250 N/50 mm, (d) the mesh structure has a bending resistance in the first direction obtained by a cantilever test of from 40 to 80 mm, and (e) the mesh structure has a bending resistance in the second direction obtained by the cantilever test of from 65 to 95 mm.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 10, 2022
    Assignee: Eneos Corporation
    Inventors: Tomoyuki Okamura, Liang Huang, Masahiro Wakayama
  • Publication number: 20220140770
    Abstract: A rotating electric machine includes a neutral busbar and a temperature sensor. The neutral busbar has a main body and a bent part that retains the temperature sensor therein. The main body has first and second parts each of which has one or more connection terminals formed therein. The bent part is formed between a circumferential end portion of the first part and a circumferential end portion of the second part. In the first part, there is formed, between the circumferential end portion of the first part and a closest connection terminal formed in the first part to the bent part, a first extending portion that extends axially or radially. Similarly, in the second part, there is formed, between the circumferential end portion of the second part and a closest connection terminal formed in the second part to the bent part, a second extending portion that extends axially or radially.
    Type: Application
    Filed: October 27, 2021
    Publication date: May 5, 2022
    Applicant: DENSO CORPORATION
    Inventors: Tomoyuki OKAMURA, Kensuke HIRAI, Tadahiro KURASAWA
  • Publication number: 20220140686
    Abstract: A rotating electric machine includes an armature and a busbar unit. The armature includes an annular armature core and a multi-phase armature coil wound on the armature core. The busbar unit is configured to connect winding end portions of the armature coil which are arranged apart from one another in a circumferential direction of the armature. Moreover, the busbar unit is fixed to a back yoke of the armature core by a plurality of pins.
    Type: Application
    Filed: October 27, 2021
    Publication date: May 5, 2022
    Applicant: DENSO CORPORATION
    Inventors: Kensuke HIRAI, Tomoyuki OKAMURA, Tadahiro KURASAWA
  • Publication number: 20220140673
    Abstract: In an armature, a busbar unit includes at least first-, second-, and third-phase busbars electrically connected to respective first-, second-, and third-phase armature windings. The first-phase busbar serves as a lowermost busbar in the axial direction, the second-phase busbar serves as an intermediate busbar stacked over the lowermost busbar in the axial direction, and the third-phase busbar serves as an uppermost busbar stacked over the intermediate busbar in the axial direction. A resin member of the busbar unit covers the lowermost busbar, intermediate busbar, and uppermost busbar stacked in the axial direction, so that the lowermost busbar, intermediate busbar, and uppermost busbar are integrated to constitute a busbar stack. A protrusion member is mounted to the intermediate busbar and protruding radially outward from the intermediate busbar. At least part of the protrusion member is located to be nonoverlapped with the uppermost busbar and the lowermost busbar.
    Type: Application
    Filed: October 28, 2021
    Publication date: May 5, 2022
    Applicant: DENSO CORPORATION
    Inventors: Tomoyuki OKAMURA, Kensuke HIRAI, Tadahiro KURASAWA
  • Publication number: 20210229395
    Abstract: A transparent net structure including two or more uniaxial alignment bodies of a multilayer film which includes a thermoplastic resin layer containing at least one polypropylene (T) selected from the group consisting of block polypropylene and random polypropylene polymerized with a metallocene catalyst, and an adhesive layer containing polypropylene (A) polymerized with a metallocene catalyst and laminated on at least one surface of the thermoplastic resin layer, in which the two or more uniaxial alignment bodies are laminated or woven such that the adhesive layers are interposed among the two or more uniaxial alignment bodies and alignment axes of the two or more uniaxial alignment bodies intersect with each other.
    Type: Application
    Filed: April 23, 2019
    Publication date: July 29, 2021
    Applicant: ENEOS CORPORATION
    Inventors: Tomoyuki OKAMURA, Keiichi OOTSUBO, Masahiro WAKAYAMA
  • Publication number: 20210194309
    Abstract: A rotary electric machine has a rotor and a stator. The stator comprises a stator coil. The stator coil has a bus bar made of a conductive member that is electrically connected to a coil terminal included in a coil end. The stator has a holder which accommodates the bus bar and is made of an insulating member. The holder is positioned so that the opening or the resin member faces towards the stator core.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 24, 2021
    Applicant: DENSO CORPORATION
    Inventor: Tomoyuki OKAMURA
  • Publication number: 20210188507
    Abstract: A sheet material is provided which includes a reticular structure, a polyamide-based resin film laminated on one face of the reticular structure, and a resin layer formed on a face of the polyamide-based resin film, the face being on the opposite side of the reticular structure. The resin layer prevents precipitation of oligomers included in the resin film on the surface of the sheet material when alcohol permeates through the polyamide-based resin film.
    Type: Application
    Filed: November 5, 2018
    Publication date: June 24, 2021
    Inventors: Tomoyuki OKAMURA, Keiichi OOTSUBO, Masahiro WAKAYAMA
  • Publication number: 20210039854
    Abstract: An air-permeable packaging material which includes a non-perforated polyolefin layer having a thickness of 3 ?m to 18 ?m and constituted of at least one polymer selected from the group consisting of polypropylene and polyethylene and a net-shaped reinforcing layer; a package which includes the air-permeable packaging material, the non-perforated polyolefin layer facing outward, and which contains an oxygen scavenger, a desiccant, a deodorant, an insect repellent, or a fragrance; and a method for producing the package.
    Type: Application
    Filed: March 18, 2019
    Publication date: February 11, 2021
    Applicant: ENEOS CORPORATION
    Inventors: Tomoyuki OKAMURA, Keiichi OOTSUBO, Masahiro WAKAYAMA
  • Publication number: 20190329522
    Abstract: A substrate 2 of an adhesive tape 1 includes a mesh structure made of thermoplastic resin. The mesh structure has a structure in which multiple first fibers drawn in a first direction corresponding to a length direction of the adhesive tape and multiple second fibers drawn in a second direction corresponding to a width direction of the adhesive tape are layered or woven. (a) A first fiber has a thickness of 0.04 mm or less, and a width of 0.6 mm or less, (b) a second fiber has a thickness greater than that of the first fiber, and a width greater than or equal to that of the first fiber, (c) the mesh structure has a tensile strength in the first direction of from 130 to 250 N/50 mm, (d) the mesh structure has a bending resistance in the first direction obtained by a cantilever test of from 40 to 80 mm, and (e) the mesh structure has a bending resistance in the second direction obtained by the cantilever test of from 65 to 95 mm.
    Type: Application
    Filed: December 19, 2017
    Publication date: October 31, 2019
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Tomoyuki Okamura, Liang Huang, Masahiro Wakayama
  • Patent number: 10418884
    Abstract: A controller-included rotating electrical machine is provided which includes a rotating electrical machine and a controller. The controller 11 is equipped with a power supply terminal-included bus bar assembly and bus bar assemblies. The power supply terminal-included bus bar assembly has bus bars which are fixedly retained by resin and electrically wire a power modules and also includes a power supply terminal connecting with one of the bus bars. Specifically, the power supply terminal is installed in the power supply terminal-included bus bar assembly along with the bus bars, thereby resulting in decreased number of parts and production steps of the controller-included rotating electrical machine as compared with a conventional structure equipped with a power supply terminal and bus bars which are fabricated as assemblies and a power supply terminal installed in another assembly.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: September 17, 2019
    Assignee: DENSO CORPORATION
    Inventor: Tomoyuki Okamura
  • Publication number: 20190077572
    Abstract: To provide a sheet material capable of suppressing reduction in moisture or ethanol permeability while maintaining desired strength, and an alcohol transpiration agent package using the same. A sheet material 11 includes a mesh-like structure 12 and a polyamide-based resin film 13. The mesh-like structure is made up of two or more uniaxially oriented members including a thermoplastic resin layer and a linear low-density polyethylene layer laminated on at least one side of the thermoplastic resin layer, and is obtained by laminating or weaving the two or more uniaxially oriented members through the linear low-density polyethylene layer so as to cross orientation axes of the two or more uniaxially oriented members. A polyamide-based resin film is laminated on the mesh-like structure through the linear low-density polyethylene layer. The mesh-like structure and the polyamide-based resin film are bonded together by the melted linear low-density polyethylene layer of the mesh-like structure.
    Type: Application
    Filed: March 31, 2017
    Publication date: March 14, 2019
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Tomoyuki Okamura, Keiichi Ootsubo
  • Publication number: 20170179794
    Abstract: A controller-included rotating electrical machine is provided which includes a rotating electrical machine and a controller. The controller 11 is equipped with a power supply terminal-included bus bar assembly and bus bar assemblies. The power supply terminal-included bus bar assembly has bus bars which are fixedly retained by resin and electrically wire a power modules and also includes a power supply terminal connecting with one of the bus bars. Specifically, the power supply terminal is installed in the power supply terminal-included bus bar assembly along with the bus bars, thereby resulting in decreased number of parts and production steps of the controller-included rotating electrical machine as compared with a conventional structure equipped with a power supply terminal and bus bars which are fabricated as assemblies and a power supply terminal installed in another assembly.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 22, 2017
    Applicant: DENSO CORPORATION
    Inventor: Tomoyuki OKAMURA
  • Patent number: 9041262
    Abstract: A stator coil includes first to fourth in-slot portions and first and second turn portions. Both the first and third in-slot portions are received in one slot of a stator core, while both the second and fourth in-slot portions are received in another slot. The first and second turn portions both protrude from an axial end face of the stator core and respectively connect the pair of the first and second in-slot portions and the pair of the third and fourth in-slot portions. The second turn portion is located inside the first turn portion. When viewed along an axial direction of the stator core, the first and second turn portions extend so as to cross each other with a reference line C interposed therebetween; the reference line C is defined to extend along a circumferential direction of the stator core through an intersection between the first and second turn portions.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: May 26, 2015
    Assignee: DENSO CORPORATION
    Inventors: Tomoyuki Okamura, Norio Kamegawa
  • Publication number: 20130314644
    Abstract: Disclosed is a film having polarization selectivity and diffusibility, and a means for easily producing the film. The polarizing diffuser film is composed of substantially one kind of crystalline resin having an intrinsic birefringence of not less than 0.1, has a total light transmittance to visible light of 50-90%, a transmission haze to visible light of 15-90% and a transition polarization degree to visible light of 20-90%.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 28, 2013
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Tomoyuki OKAMURA, Tamio KAWASUMI, Yuji INATOMI, Michio ERIGUCHI, Masaki MISUMI, Masataka IWATA, Haruo INOUE, Hiroshi MORI, Hirofumi ZENKOH
  • Patent number: 8462297
    Abstract: Disclosed is a film having polarization selectivity and diffusibility, and a means for easily producing the film. The polarizing diffuser film is composed of substantially one kind of crystalline resin having an intrinsic birefringence of not less than 0.1, has a total light transmittance to visible light of 50-90%, a transmission haze to visible light of 15-90% and a transition polarization degree to visible light of 20-90%.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: June 11, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tomoyuki Okamura, Tamio Kawasumi, Yuji Inatomi, Michio Eriguchi, Masaki Misumi, Masataka Iwata, Haruo Inoue, Hiroshi Mori, Hirofumi Zenkoh
  • Publication number: 20120262646
    Abstract: Disclosed are a film with excellent polarization selectivity and excellent diffusion properties, and a means for easily producing the same. The polarizing diffusion film has an intrinsic birefringence of at least 0.1 and substantially comprises one type of crystalline resin; and in the polarizing diffusion film, the total light transmittance is 50 to 90% in relation to visible light, the transmission haze is 15 to 90% in relation to visible light, and the degree of transmission polarization is 20 to 90% in relation to visible light.
    Type: Application
    Filed: June 25, 2012
    Publication date: October 18, 2012
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masataka Iwata, Tomoyuki Okamura, Koichi Shimada, Yuji Inatomi, Tamio Kawasumi, Michio Eriguchi, Masaki Misumi