Patents by Inventor Hiroki Honma

Hiroki Honma 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: 11998992
    Abstract: A surface coated cutting tool comprises a tool body. A TiAlCN layer having an average layer thickness of 2.0 to 20.0 ?m and represented by (Ti(1-x)Alx)(CyN(1-y)) is provided on the surface of the tool body and has an average content ratio xavg of Al and an average content ratio yavg of C that satisfy 0.60?xavg?0.95 and 0.00?yavg?0.05, an area ratio occupied by crystal grains having an NaCl-type face-centered cubic structure that satisfies 90 area % or more, and crystal grains satisfying 0.01 ?m<d?0.20 ?m in 10 to 40 area %. An average maximum length in a direction parallel to the surface of the tool body in each region in which the crystal grains having d of 0.01 ?m<d?0.20 ?m are adjacent and connected to each other in the upper layer side region is 5.0 ?m or less.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: June 4, 2024
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Takuya Ishigaki, Kousuke Yanagisawa, Hiroki Nakamura, Hisashi Honma
  • Patent number: 8923443
    Abstract: A direct-conversion type wireless receiver includes a pair of mixers for frequency-converting a radio signal received from an antenna into a base band signal by local signals having different phases; a first amplification circuit for amplifying the base band signal up to a demodulation level; a second amplification circuit provided between the mixer and the first amplification circuit; and a variable current circuit including a multi-stage current mirror to add a current 2n times as high as a reference current. The wireless receiver further includes a control unit configured to correct a DC offset of the mixer by allowing a current to flow into the second amplification circuit from the variable current circuit, based on an output of the first amplification circuit, and a capacitor connected between a gate and a source of a PchMOSFET which allows the reference current to flow therethrough.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: December 30, 2014
    Assignee: Goyo Electronics Co., Ltd.
    Inventors: Katsuhiko Ito, Hiroki Honma, Yoshimi Nitta
  • Patent number: 7731333
    Abstract: A liquid-jet head includes: a plurality of head bodies, each having: a nozzle plate having a plurality of nozzles bored therein; a passage-forming substrate having a pressure generating chamber formed therein, which communicates with the nozzle and receives a pressure for use in ejecting a liquid droplet from a pressure generating element; and a head case disposed on the passage-forming substrate at a surface opposite to the nozzle plate and having paths for supplying liquid to the pressure generating chamber therethrough; and a fixing member bonded onto a side of the nozzle plate of each of the plurality of head bodies, to positionally fix the head bodies thereto at predetermined intervals, wherein a reinforcing portion made of a predetermined adhesive agent, which is charged in a clearance between the head bodies fixed to the fixing member, followed by setting, is disposed at the clearance.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: June 8, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Honma, Kazutoshi Goto, Isao Yanagisawa, Hiroshige Owaki
  • Publication number: 20080284826
    Abstract: A liquid ejecting head comprising a head body capable of ejecting liquid in from pressure generating chamber through nozzles by driving the pressure generating chamber, a plurality of head members adhered to the head body, the head members comprising a head casing having a channel for supplying the liquid to the pressure generating chamber and a plurality of notches for allowing a first and second adhesive to be filled in a plurality of gaps between the head members adhered to the head body, and a fixed member which is adhered to the liquid ejecting surface of the head members, wherein the first and second adhesive have different viscosities.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hiroshige OWAKI, Hiroki HONMA
  • Publication number: 20080284819
    Abstract: A liquid ejecting head comprising a head body capable of ejecting liquid in from pressure generating chamber through nozzles by driving the pressure generating chamber, a plurality of head members adhered to the head body, the head members comprising a head casing having a channel for supplying the liquid to the pressure generating chamber and a plurality of notches for allowing a first and second adhesive to be filled in a plurality of gaps between the head members adhered to the head body, and a fixed member which is adhered to the liquid ejecting surface of the head members, wherein the first and second adhesive have different viscosities.
    Type: Application
    Filed: May 13, 2008
    Publication date: November 20, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hiroshige OWAKI, Hiroki HONMA
  • Publication number: 20070165070
    Abstract: A liquid-jet head includes: a plurality of head bodies, each having: a nozzle plate having a plurality of nozzles bored therein; a passage-forming substrate having a pressure generating chamber formed therein, which communicates with the nozzle and receives a pressure for use in ejecting a liquid droplet from a pressure generating element; and a head case disposed on the passage-forming substrate at a surface opposite to the nozzle plate and having paths for supplying liquid to the pressure generating chamber therethrough; and a fixing member bonded onto a side of the nozzle plate of each of the plurality of head bodies, to positionally fix the head bodies thereto at predetermined intervals, wherein a reinforcing portion made of a predetermined adhesive agent, which is charged in a clearance between the head bodies fixed to the fixing member, followed by setting, is disposed at the clearance.
    Type: Application
    Filed: January 12, 2007
    Publication date: July 19, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Hiroki Honma, Kazutoshi Goto, Isao Yanagisawa, Hiroshige Owaki
  • Patent number: 6538877
    Abstract: To provide a gas insulation switch reducing the SF6 gas use amount without damaging the insulation performance and arc extinguishing performance, the present invention uses SF6 gas as insulating gas to be charged in the grounding tank 1 of a unit having a switching unit of the breaker 5, the disconnecting switches 3, 4, and 8, and the grounding switches 6, 7; and 9, for example, the line unit 190 and uses gas having a smaller warming coefficient than that of SF6 gas, for example, nitrogen gas 23, or air as insulating gas to be charged in the grounding tank 1 of a unit having no switching unit, for example, the main bus units 100 and 110 and the connection bus unit 160.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: March 25, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Tokio Yamagiwa, Hiroki Honma, Koji Sasaki
  • Publication number: 20020071242
    Abstract: To provide a gas insulation switch reducing the SF6 gas use amount without damaging the insulation performance and arc extinguishing performance, the present invention uses SF6 gas as insulating gas to be charged in the grounding tank 1 of a unit having a switching unit of the breaker 5, the disconnecting switches 3, 4, and 8, and the grounding switches 6, 7, and 9, for example, the line unit 190 and uses gas having a smaller warming coefficient than that of SF6 gas, for example, nitrogen gas 23, or air as insulating gas to be charged in the grounding tank 1 of a unit having no switching unit, for example, the main bus units 100 and 110 and the connection bus unit 160.
    Type: Application
    Filed: February 1, 2002
    Publication date: June 13, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Tokio Yamagiwa, Hiroki Honma, Koji Sasaki
  • Patent number: 6373687
    Abstract: To provide a gas insulation switch reducing the SF6 gas use amount without damaging the insulation performance and arc extinguishing performance, the present invention uses SF6 gas as insulating gas to be charged in the grounding tank 1 of a unit having a switching unit of the breaker 5, the disconnecting switches 3, 4, and 8, and the grounding switches 6, 7, and 9, for example, the line unit 190 and uses gas having a smaller warming coefficient than that of SF6 gas, for example, nitrogen gas 23, or air as insulating gas to be charged in the grounding tank 1 of a unit having no switching unit, for example, the main bus units 100 and 110 and the connection bus unit 160.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: April 16, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Tokio Yamagiwa, Hiroki Honma, Koji Sasaki
  • Publication number: 20020010676
    Abstract: A system and method for electronically completing a transaction between a user and network access vendors potentially providing a network access for the user. The system is preferably implemented in software program. The system allows an occasional user to offer payable access fee over a computer or communications network. If the plural network access vendors judge whether to accept, reject or counter the offer, the user gets the acceptance, rejection or counteroffer. The user getting the acceptance or counteroffer can contract with the network access vendor providing it at favorable price.
    Type: Application
    Filed: July 23, 2001
    Publication date: January 24, 2002
    Applicant: NEC CORPORATION
    Inventor: Hiroki Honma
  • Publication number: 20020008958
    Abstract: To provide a gas insulation switch reducing the SF6 gas use amount without damaging the insulation performance and arc extinguishing performance, the present invention uses SF6 gas as insulating gas to be charged in the grounding tank 1 of a unit having a switching unit of the breaker 5, the disconnecting switches 3, 4, and 8, and the grounding switches 6, 7, and 9, for example, the line unit 190 and uses gas having a smaller warming coefficient than that of SF6 gas, for example, nitrogen gas 23, or air as insulating gas to be charged in the grounding tank 1 of a unit having no switching unit, for example, the main bus units 100 and 110 and the connection bus unit 160.
    Type: Application
    Filed: August 1, 2001
    Publication date: January 24, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Tokio Yamagiwa, Hiroki Honma, Koji Sasaki
  • Patent number: 6292356
    Abstract: A gas insulation switch has a container charged with insulating gas which contains an electric conductor and at least a pair of contactors. The container is divided into a plurality of sections. For the sections which have no switching devices or separable contactors, a different insulating gas is used as compared with that for the sections having breakers or separable contactors. In particular, in the section of the container, such as a grounding tank, that contains only electric conductors without separable contactors, an insulating gas having a smaller earth warming coefficient or global warming coefficient than that of SF6 gases is used. On the other hand, for the section of the grounding tank which contains a breaker or switch having separable contactors, an SF6 insulating gas is used.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: September 18, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Tokio Yamagiwa, Hiroki Honma, Koji Sasaki