Patents by Inventor Junichi Hamada

Junichi Hamada 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).

  • Publication number: 20110186184
    Abstract: The present invention provides a ferritic stainless steel casting and a sheet thereof excellent in deep drawability, punch stretchability and ridging resistance and a method for producing the casting and the sheet. In the present invention, a chemical composition is controlled so that the amounts of C, N, Si, Mn, P and Ti may be reduced to the utmost for securing high workability and, on the basis of the chemical composition, the roping and ridging of a steel sheet product is reduced by adding Mg, thus dispersing Mg containing oxides that accelerate the formation of nuclei for solidification and, resultantly, suppressing the development of coarse columnar crystals in a casting. The present invention is characterized in that the average composition of the Mg containing oxides dispersing in a casting satisfies the following expressions <2> and <3>, 17.4(Al2O3)+3.9(MgO)+0.3(MgAl2O4)+18.7(CaO)?500??<2>, (Al2O3)+(MgO)+(MgAl2O4)+(CaO)?95??<3>.
    Type: Application
    Filed: April 5, 2011
    Publication date: August 4, 2011
    Applicant: NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
    Inventors: Akihiko Takahashi, Junichi Hamada, Ken Kimura, Takashi Morchoshi, Yoshihito Yamada, Toyohiko Kakihara, Satoshi Hashimoto
  • Publication number: 20110164907
    Abstract: A surface treatment apparatus for recording material, includes: a resin film to be adhered to a toner image surface of a toner image carried on the recording material after a whole region of the toner image has been heat treated; a heating section including a plurality of heating elements provided on an opposite side of the recording material relative to the resin film; and a control section which controls the heating section, wherein the control section performs a current control of a predetermined part of the plurality of heating elements selectively in a state where the recording material and resin film contacts each other and recording material moves relatively to the heating section.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 7, 2011
    Inventors: Miho YAMANO, Junichi Hamada
  • Publication number: 20100294402
    Abstract: This stainless steel sheet includes, in terms of mass %, C: 0.001 to 0.1%, N: 0.01 to 0.15%, Si: 0.01 to 2%, Mn: 0.1 to 10%, P: 0.05% or less, S: 0.01% or less, Ni: 0.5 to 5%, Cr: 10 to 25%, and Cu: 0.5 to 5%, with a remainder being Fe and unavoidable impurities, and contains a ferrite phase as a main phase and 10% or more of an austenite phase, wherein a work-hardening rate in a strain range of up to 30% is 1000 MPa or more which is measured by a static tensile testing and a difference between static and dynamic stresses which occur when 10% of deformation is caused is 150 MPa or more. This method for producing a stainless steel includes annealing a cold-rolled steel sheet under conditions where a holding temperature is set to be in a range of 950 to 1150° C. and a cooling rate until 400° C. is set to be in a range of 3° C./sec or higher.
    Type: Application
    Filed: January 22, 2009
    Publication date: November 25, 2010
    Inventors: Junichi Hamada, Haruhiko Kajimura, Eiichiro Ishimaru
  • Publication number: 20100233015
    Abstract: This invention provides a steel sheet for structural components excellent in impact absorption property comprising, in mass %, C: 0.005 to 0.05%, N: 0.01 to 0.30%, Si: 0.1 to 2%, Mn: 0.1 to 15%, Ni: 0.5 to 8%, Cu: 0.1 to 5%, Cr: 11 to 20%, Al: 0.01 to 0.5%, and a balance of Fe and unavoidable impurities, wherein Md30 value given by equation (A) is 0 to 100° C., and total impact energy absorption in dynamic tensile testing is 500 MJ/m3 or greater: Md30=551?462(C+N)?9.2Si?8.1Mn?13.7Cr?29(Ni+Cu) ??(A).
    Type: Application
    Filed: October 30, 2007
    Publication date: September 16, 2010
    Inventors: Junichi Hamada, Haruhiko Kajimura, Fumio Fudanoki, Toshio Tanoue, Ken Kimura
  • Publication number: 20100218856
    Abstract: The present invention provides Cr-containing steel superior in heat fatigue characteristics, that is, Cr-containing steel superior in heat fatigue characteristics, characterized by containing, by mass %, C: 0.01% or less, N: 0.015% or less, Si: 0.8 to 1.0%, Mn: 0.2 to 1.5%, P: 0.03% or less, S: 0.01% or less, Ni: 0.2% or less, Cu: 0.2% or less, Cr: 13 to 15%, Mo: 0.1% or less, Nb: 0.3 to 0.5%, Ti: 0.05 to 0.2%, V: 0.01 to 0.2%, Al: 0.015 to 1.0%, and B: 0.0002 to 0.0010%, satisfying (Nb+1.9×Ti)/(C+N)?50, and having a balance of Fe and unavoidable impurities, wherein a 0.2% yield strength at 800° C. after aging at 800° C. for 100 hours or more is 20 MPa or more and a drawability value at 200° C. is 35% or more and wherein a soluble Nb amount+soluble Ti amount after aging at 800° C. for 100 hours or more is 0.08% or more.
    Type: Application
    Filed: June 25, 2007
    Publication date: September 2, 2010
    Inventors: Junichi Hamada, Haruhiko Kajimura, Nobuhiko Hiraide, Toshio Kojima, Daiharu Doi
  • Publication number: 20100092218
    Abstract: An image forming apparatus includes: a first rotary body; a second rotary body provided to face the first rotary body, wherein the first rotary body and the second rotary body form a nip portion by coming in contact with each other to rotate, at which a sheet bearing a toner image is conveyed while being heated and pressed, thereby fixing the toner image onto the sheet; a first nozzle which blows air to a first air blowing position established on a circumferential surface of the first rotary body and on a side of an outlet of the nip portion; and a second nozzle which blows air to a second air blowing position established on a circumferential surface of the second rotary body and established downstream of the first air blowing position in a traveling direction of the sheet.
    Type: Application
    Filed: October 7, 2009
    Publication date: April 15, 2010
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Masahiro ONODERA, Junichi HAMADA, Hiroshi FUNABIKI, Hidetoshi KATAYANAGI
  • Patent number: 7682559
    Abstract: A Cr-bearing heat-resistant steel sheet with excellent workability comprising, in mass %, C of 0.001% to 0.010%, Si of 0.01% to 0.60%, Mn of 0.05% to 0.60%, P of 0.01% to 0.04%, S of 0.0005% to 0.0100%, Cr of 14% to 19%, N of 0.001% to 0.020%, Nb of 0.3% to 1.0%, Mo of 0.5% to 2.0% and, as required, one or more of Cu of 0.5% to 3.0%, W of 0.01% to 1.0% and Sn of 0.01% to 1.00%, and/or one or more of Ti of 0.01% to 0.20%, Al of 0.005% to 0.100%, Mg of 0.0002% to 0.0100%, and B of 0.0003% to 0.001%, with the remainder comprising iron and unavoidable impurities, and having an x-ray intensity ratio {111}/({100}+{211}) of 2 or greater in the central region of thickness.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: March 23, 2010
    Assignee: Nippon Steel Corporation
    Inventors: Junichi Hamada, Naoto Ono, Akihiko Takahashi, Tadashi Komori
  • Publication number: 20090174770
    Abstract: To provide a network camera and a network camera system in which an image can be securely distributed to a designated distribution recipient. A network camera system 100 connected to a communication network 130 and having a network camera 110 and a plurality of PCs 120, the network camera 110 comprising an image pickup section 111 for picking up the image, a sending and receiving section 115 for distributing the picked up image to the PC 120, an image sending monitoring section 116 for monitoring whether or not the picked up image is distributed to the designated PC 120 among the plurality of PCs 120, and an accumulation memory 119 for accumulating the picked up image when the distribution of the image to the designated PC 120 is interrupted, and the PC 120 comprising an image receiving section 121 for receiving the picked up image distributed thereto.
    Type: Application
    Filed: November 16, 2006
    Publication date: July 9, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Tsuyoshi Ogata, Yasuji Nakamura, Hirotaka Fujimura, Junichi Hamada
  • Publication number: 20090160217
    Abstract: The invention provides structural component for an automobile, two-wheeled vehicle or railcar excellent in impact-absorption property, shape fixability and flange cuttability, and method for producing the same, which structural component has a hat-like shape including vertical walls and flanges, wherein distal ends of the flanges contain 20 vol % or greater of austenite phase and have a cross-section hardness expressed as Vickers harness of 150˜350, and a center regions of the vertical walls have, in a common cross-section with the flanges, a content of deformation-induced martensite phase exceeding that of the distal ends of the flanges by 10 vol % or greater and a cross-section hardness expressed as Vickers hardness that exceeds that of the distal ends of the flanges by 50 or greater.
    Type: Application
    Filed: April 1, 2008
    Publication date: June 25, 2009
    Inventors: Ken Kimura, Junichi Hamada, Naoto Ono, Haruhiko Kajimura, Toshio Tanoue
  • Publication number: 20090092513
    Abstract: The present invention provides, as a material superior in heat resistance in a hot environment where the maximum temperature of the exhaust gas becomes 750 to 900° C., ferritic stainless steel sheet superior in heat resistance in a broad temperature region of 750 to 900° C. with long term stability by a smaller amount of addition of Mo than SUS444 containing about 2% of expensive Mo, that is, ferritic stainless steel sheet superior in heat resistance characterized by containing, by mass %, C: 0.01% or less, N: 0.02% or less, Si: 0.05 to 1%, Mn: 0.1 to 2%, Cr: 10 to 30%, Mo: 0.1 to 1%, Cu: 1 to 2%, Nb: 0.2 to 0.7%, Ti: 0.01 to 0.3%, and B: 0.0002 to 0.0050%, having a balance of Fe and unavoidable impurities, and having a 0.2% yield strength at 750° C. of 70 MPa or more.
    Type: Application
    Filed: December 26, 2007
    Publication date: April 9, 2009
    Inventors: Junichi Hamada, Haruhiko Kajimura, Toshio Tanoue, Fumio Fudanoki, Yoshiharu Inoue
  • Publication number: 20090000703
    Abstract: The present invention provides a ferritic stainless steel sheet superior in shapeability containing, by wt %, C: 0.001 to 0.010%, Si: 0.01 to 1.0%, Mn: 0.01 to 1.0%, P: 0.01 to 0.04%, Cr: 10 to 20%, N: 0.001 to 0.020%, Nb: 0.3 to 1.0%, and Mo: 0.5 to 2.0%, wherein the total precipitates are, by wt %, 0.05 to 0.60%. A method of production of a ferritic stainless steel sheet superior in shapeability comprising producing a cold rolling material in the production process so that the Nb-based precipitates become, by vol %, 0.15% to 0.6% and have a diameter of 0.1 ?m to 1 ?m and/or so that the recrystallized grain size becomes 1 ?m to 40 ?m and the recrystallization rate becomes 10 to 90%, then cold rolling and annealing it at 1010 to 1080° C.
    Type: Application
    Filed: August 26, 2008
    Publication date: January 1, 2009
    Applicant: Nippon Steel & Sumikin Stainless Steel Corporation
    Inventors: Junichi Hamada, Naoto Ono, Yoshiharu Inoue, Ken Kimura
  • Patent number: 7430219
    Abstract: When a transport rate Rs is updated, in the case where the updated transport rate Rs is within a variable range (Rc<Rs<U×Rc, and U>1) defined by a current encoding rate Rc, FEC (Forward Error Correction) data sending rate Rf is updated (Rf=Rs?Rc) without updating the current encoding rate Rc. On the other hand, in the case where an Rc update timer set to three seconds, for example, is timed out, the encoding rate Rc is updated using a minimum value Rs_min of the transport rate up to that time (Rc=V×Rs_min, and 0<V<1). Even when the transport rate Rs greatly varies to be out of the variable range, the encoding rate Rc is updated in the same manner.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: September 30, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomoaki Itoh, Takao Yamaguchi, Harumine Yoshiba, Naoyuki Otoshi, Manabu Nakamura, Junichi Hamada
  • Publication number: 20080142123
    Abstract: The present invention provides a ferritic stainless steel casting and a sheet thereof excellent in deep drawability, punch stretchability and ridging resistance and a method for producing the casting and the sheet. In the present invention, a chemical composition is controlled so that the amounts of C, N, Si, Mn, P and Ti may be reduced to the utmost for securing high workability and, on the basis of the chemical composition, the roping and ridging of a steel sheet product is reduced by adding Mg, thus dispersing Mg containing oxides that accelerate the formation of nuclei for solidification and, resultantly, suppressing the development of coarse columnar crystals in a casting. The present invention is characterized in that the average composition of the Mg containing oxides dispersing in a casting satisfies the following expressions <2> and <3>, 17.4(Al2O3)+3.9(MgO)+0.3(MgAl2O4)+18.7(CaO)?500<2>, (Al2O3)+(MgO)+(MgAl2O4)+(CaO)?95<3>.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 19, 2008
    Applicant: Nippon Steel Corporation
    Inventors: Akihiko Takahashi, Junichi Hamada, Ken Kimura, Takashi Morohoshi, Yoshihito Yamada, Toyohiko Kakihara, Satoshi Hashimoto
  • Patent number: 7341637
    Abstract: A ferritic stainless steel sheet excellent in press formability and operability, characterized by: containing appropriate amounts of C, N, Cr, Si, Mn, P, S, Al, Ti and V, with the balance consisting of Fe and unavoidable impurities; having a solid lubricating film or films on one or both of the surfaces; and having a ratio Z, defined as Z=Z1/Z2, of less than 0.5, a tensile strength of 450 MPa or less and an average r-value of 1.7 or more, wherein Z1 is a friction coefficient of the surface of a solid lubricating film and Z2 that of the surface of a reference material coated with neither a coating nor lubricating oil. In the ferritic stainless steel sheet, the amounts of Sol-Ti and Insol-V may be regulated to appropriate ranges, wherein Sol-Ti means the amount of Ti existing in the state of solid solution in steel and Insol-V means the amount of V existing in the state of precipitation in steel.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: March 11, 2008
    Assignee: Nippon Steel & Sumikin Stainless Steel Corporation
    Inventors: Ken Kimura, Masao Kikuchi, Masayuki Tendo, Junichi Hamada, Satoshi Akamatsu
  • Patent number: 7272356
    Abstract: In an information distribution system for outputting information using an information output unit that is distributed from an information distribution unit, it is an object of the present invention to obtain an information distribution system capable of readily changing information in a short time to be outputted from the information output unit. In order to achieve this object, an information distribution system includes an output unit (10) for outputting information to be provided to a user, a distribution unit (11) for distributing a piece of information to the output unit (10) as the information to be provided, the piece of information being selected from several pieces of information prepared in advance, and an input unit (12) connected to the distribution unit (11) through a communication line and inputting a control signal to the distribution unit (11) through the communication line, the control signal selecting the information to be provided from the several pieces of information.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: September 18, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Junichi Hamada, Kiyoyasu Maruyama, Tomonori Ohashi, Kyosuke Yoshimoto, Norishige Emoto, Tetsuya Sigeeda, Yoichi Masubuchi, Takanori Murakami
  • Patent number: 7187900
    Abstract: An image forming apparatus comprising a fixing roller, an endless fixing belt engaged at least with the fixing roller, and a pressing roller opposite to the fixing roller with the endless fixing belt between them; wherein the image forming apparatus is equipped with a pressure changing member for changing the mean pressure on a second pressing area against which the pressing roller pressed the fixing roller via the fixing belt in the pressure area formed by the pressing roller.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: March 6, 2007
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Hiroshi Fuma, Yoshio Yamazaki, Junichi Hamada, Hisayoshi Nagase, Masahiro Onodera
  • Publication number: 20060225820
    Abstract: The present invention provides a ferritic stainless steel sheet superior in shapeability containing, by wt %, C: 0.001 to 0.010%, Si: 0.01 to 1.0%, Mn: 0.01 to 1.0%, P: 0.01 to 0.04%, Cr: 10 to 20%, N: 0.001 to 0.020%, Nb: 0.3 to 1.0%, and Mo: 0.5 to 2.0%, wherein the total precipitates are, by wt %, 0.05 to 0.60%. A method of production of a ferritic stainless steel sheet superior in shapeability comprising producing a cold rolling material in the production process so that the Nb-based precipitates become, by vol %, 0.15% to 0.6% and have a diameter of 0.1 ?m to 1 ?m and/or so that the recrystallized grain size becomes 1 ?m to 40 ?m and the recrystallization rate becomes 10 to 90%, then cold rolling and annealing it at 1010 to 1080° C.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 12, 2006
    Inventors: Junichi Hamada, Naoto Ono, Yoshiharu Inoue, Ken Kimura
  • Publication number: 20050161133
    Abstract: A Cr-bearing heat-resistant steel sheet with excellent workability comprising, in mass %, C of 0.001% to 0.010%, Si of 0.01% to 0.60%, Mn of 0.05% to 0.60%, P of 0.01% to 0.04%, S of 0.0005% to 0.0100%, Cr of 14% to 19%, N of 0.001% to 0.020%, Nb of 0.3% to 1.0%, Mo of 0.5% to 2.0% and, as required, one or more of Cu of 0.5% to 3.0%, W of 0.01% to 1.0% and Sn of 0.01% to 1.00%, and/or one or more of Ti of 0.01% to 0.20%, Al of 0.005% to 0.100%, Mg of 0.0002% to 0.0100%, and B of 0.0003% to 0.001%, with the remainder comprising iron and unavoidable impurities, and having an x-ray intensity ratio {111}/({100}+{211}) of 2 or greater in the central region of thickness.
    Type: Application
    Filed: December 12, 2003
    Publication date: July 28, 2005
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Junichi Hamada, Naoto Ono, Akihiko Takahashi, Tadashi Komori
  • Publication number: 20050111862
    Abstract: An image forming apparatus comprising a fixing roller, an endless fixing belt engaged at least with the fixing roller, and a pressing roller opposite to the fixing roller with the endless fixing belt between them; wherein the image forming apparatus is equipped with a pressure changing member for changing the mean pressure on a second pressing area against which the pressing roller pressed the fixing roller via the fixing belt in the pressure area formed by the pressing roller.
    Type: Application
    Filed: July 15, 2004
    Publication date: May 26, 2005
    Inventors: Hiroshi Fuma, Yoshio Yamazaki, Junichi Hamada, Hisayoshi Nagase, Masahiro Onodera
  • Publication number: 20050052565
    Abstract: To provide a solid-state imaging device capable of outputting a captured image with a high quality through high-speed transferring and discharging of smears during the exposure operation.
    Type: Application
    Filed: May 8, 2001
    Publication date: March 10, 2005
    Inventor: Junichi Hamada