Patents by Inventor Seiji Kado
Seiji Kado 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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Patent number: 10686423Abstract: A phase-shifting circuit 1 includes a signal conductor 2 that transmits signals, and a dielectric body 3 that is disposed to overlap the signal conductor 2, said phase-shifting circuit changing the phase of the signals by changing the area of an overlapping section 5 where the signal conductor 2 and the dielectric body 3 overlap each other. The phase-shifting circuit further includes a transformer unit 7 for matching impedance between the overlapping section 5 and non-overlapping section 6 where the signal conductor 2 and the dielectric body 3 do not overlap each other, said transformer unit being provided at end sections of the dielectric body 3, said end sections being on the input side and output side of the signals.Type: GrantFiled: March 30, 2015Date of Patent: June 16, 2020Assignee: HITACHI METALS, LTD.Inventors: Satoshi Yoshihara, Seiji Kado, Nobuaki Kitano
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Patent number: 10454164Abstract: An antenna device includes a plurality of antenna element groups including a plurality of antenna elements arranged in a horizontal direction. The plurality of antenna element groups are arranged in multiple stages in a vertical direction. The stage antenna element group includes a first antenna element group in which the antenna element in an even number sequence from the antenna element configuring the antenna element group is arranged at a shifted position to an upper side or a lower side in the vertical direction from the antenna element in an odd number sequence, and a second antenna element group in which the antenna element in the even number sequence from the antenna element configuring the antenna element group is arranged at a shifted position to the other side of the lower side or the upper side in the vertical direction from the antenna element in the odd number sequence.Type: GrantFiled: November 27, 2015Date of Patent: October 22, 2019Assignee: HITACHI METALS, LTD.Inventors: Satoshi Yoshihara, Tomoyuki Ogawa, Seiji Kado
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Patent number: 10439296Abstract: An antenna device includes a plurality of antenna elements, a metal member integrally including a first wall and a plurality of second walls that are arranged in parallel to each other and perpendicularly extend from one surface of the first wall, and circuit boards that are respectively housed in substrate-housing spaces as gaps between the adjacent second walls and mount feeder circuits for feeding power to the plurality of antenna elements.Type: GrantFiled: January 12, 2018Date of Patent: October 8, 2019Assignee: HITACHI METALS, LTD.Inventors: Seiji Kado, Tomoyuki Ogawa, Satoshi Yoshihara
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Publication number: 20180358693Abstract: An antenna device includes a plurality of antenna element groups including a plurality of antenna elements arranged in a horizontal direction. The plurality of antenna element groups are arranged in multiple stages in a vertical direction. The stage antenna element group includes a first antenna element group in which the antenna element in an even number sequence from the antenna element configuring the antenna element group is arranged at a shifted position to an upper side or a lower side in the vertical direction from the antenna element in an odd number sequence, and a second antenna element group in which the antenna element in the even number sequence from the antenna element configuring the antenna element group is arranged at a shifted position to the other side of the lower side or the upper side in the vertical direction from the antenna element in the odd number sequence.Type: ApplicationFiled: November 27, 2015Publication date: December 13, 2018Applicant: Hitachi Metals, Ltd.Inventors: Satoshi YOSHIHARA, Tomoyuki OGAWA, Seiji KADO
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Publication number: 20180212335Abstract: An antenna device includes a plurality of antenna elements, a metal member integrally including a first wall and a plurality of second walls that are arranged in parallel to each other and perpendicularly extend from one surface of the first wall, and circuit boards that are respectively housed in substrate-housing spaces as gaps between the adjacent second walls and mount feeder circuits for feeding power to the plurality of antenna elements.Type: ApplicationFiled: January 12, 2018Publication date: July 26, 2018Inventors: Seiji Kado, Tomoyuki Ogawa, Satoshi Yoshihara
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Publication number: 20180115297Abstract: A phase-shifting circuit 1 includes a signal conductor 2 that transmits signals, and a dielectric body 3 that is disposed to overlap the signal conductor 2, said phase-shifting circuit changing the phase of the signals by changing the area of an overlapping section 5 where the signal conductor 2 and the dielectric body 3 overlap each other. The phase-shifting circuit further includes a transformer unit 7 for matching impedance between the overlapping section 5 and non-overlapping section 6 where the signal conductor 2 and the dielectric body 3 do not overlap each other, said transformer unit being provided at end sections of the dielectric body 3, said end sections being on the input side and output side of the signals.Type: ApplicationFiled: March 30, 2015Publication date: April 26, 2018Applicant: APRESIA Systems, Ltd.Inventors: Satoshi YOSHIHARA, Seiji KADO, Nobuaki KITANO
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Patent number: 7026993Abstract: A planar antenna has a radiating element that radiates electric wave, and an earthing conductive plate that reflects the electric wave radiated from the radiating element. There is formed a space between the earthing conductive plate and the radiating element. The radiating element has a strip-shaped central conductive part with a length corresponding to the half wavelength of a first transmission radio frequency signal, and strip-shaped conductive parts with a length corresponding to the half wavelength of a second transmission radio frequency signal that has a frequency different from that of the first transmission radio frequency signal.Type: GrantFiled: May 27, 2003Date of Patent: April 11, 2006Assignee: Hitachi Cable, Ltd.Inventors: Xin Zhang, Seiji Kado, Hiroaki Satou
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Publication number: 20040027291Abstract: A planar antenna has a radiating element that radiates electric wave, and an earthing conductive plate that reflects the electric wave radiated from the radiating element. There is formed a space between the earthing conductive plate and the radiating element. The radiating element has a strip-shaped central conductive part with a length corresponding to the half wavelength of a first transmission radio frequency signal, and strip-shaped conductive parts with a length corresponding to the half wavelength of a second transmission radio frequency signal that has a frequency different from that of the first transmission radio frequency signal.Type: ApplicationFiled: May 27, 2003Publication date: February 12, 2004Inventors: Xin Zhang, Seiji Kado, Hiroaki Satou
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Patent number: 6239753Abstract: An earthing conductor is disposed on the reverse of a print board, and a signal process circuit section including a transmit-and-receive circuit is disposed on the right side of the board. A loading coil is mounted on the right side of the board across a print pattern of the signal process circuit section and a print pattern of an antenna. A vertical portion of the antenna projects from the print pattern of the antenna on the print board, and a horizontal portion of the antenna horizontally extends from a top end of the vertical portion in parallel with the print board.Type: GrantFiled: April 7, 1997Date of Patent: May 29, 2001Assignee: Omron CorporationInventors: Seiji Kado, Kazuhiko Sato
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Patent number: 6205314Abstract: A developing roller and a developing device are provided to enable a satisfactory developing operation. In order to accomplish this object, a roller main body of the developing roller is made of a roller base material containing acrylonitrile-butadiene rubber as a main component, and an adherence preventing coating layer is formed on the outer circumferential surface of the roller main body, thereby preventing the adherence of developer to the roller main body. Particularly, by setting the friction coefficient of the coating layer within a range of 0.5 to 0.95 inclusive and/or the glossiness thereof within a range of 4.5 to 8 inclusive, an occurrence of any of negative ghost, positive ghost and background fogging is prevented or suppressed to a level where no problem is presented in practical use.Type: GrantFiled: June 29, 1999Date of Patent: March 20, 2001Assignee: Kyocera Mita CorporationInventors: Nariaki Tanaka, Takahiko Murata, Masayuki Ishii, Seiji Kado
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Patent number: 5812153Abstract: An ink jet printing apparatus includes a sheet transporting mechanism for transporting a printing sheet along a vertical plane; a first printing head unit provided on a horizontal plane perpendicularly intersecting the vertical plane and having an ink emission portion for emitting ink to one side surface of the printing sheet; and a second printing head unit provided on a horizontal plane perpendicularly intersecting the vertical plane and having an ink emission portion for emitting ink to the other side surface of the printing sheet.Type: GrantFiled: May 15, 1995Date of Patent: September 22, 1998Assignee: Mita Industrial Co., Ltd.Inventors: Takeshi Watanabe, Kikunosuke Tsuji, Setsuo Hori, Seiji Kado, Kenichi Satake, Hiromi Nakatsu, Kohichi Baba, Masayuki Ishii, Yoshiko Uriu
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Patent number: 5615877Abstract: A sheet transporting device for use in an image forming apparatus includes a first and second sheet transporting members movable in widthwise directions of sheet to be transported, the first sheet transporting member for transporting the sheet in a lengthwise direction of the sheet in contact with one side end portion of the sheet, the second sheet transporting member for transporting the sheet in the lengthwise direction in contact with the other side end portion of the sheet; a moving mechanism for moving the first and second sheet transporting members in widthwise directions of the sheet: a sheet feeder provided at an upstream of the first and second sheet transporting members for holding the sheet temporarily and feeding the sheet to the first and second sheet transporting members; and a controller for controlling the moving mechanism and the sheet feeder to move the first and second sheet transporting members until they come into contact with the sheet while rendering the sheet feeder hold the sheet.Type: GrantFiled: May 22, 1995Date of Patent: April 1, 1997Assignee: Mita Industrial Co., Ltd.Inventors: Takeshi Watanabe, Kikunosuke Tsuji, Setsuo Hori, Seiji Kado, Kenichi Satake, Hiromi Nakatsu, Kohichi Baba, Masayuki Ishii, Yoshiko Uriu
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Patent number: 5506295Abstract: Ink comprising an aqueous medium, a water-insoluble colorant and a dispersant for dispersing the colorant in the aqueous medium, the dispersant being a water-soluble polymer obtained by polymerizing a monomer containing at least one monomer selected from acryloylmorpholine represented by the formula (1): ##STR1## and styrene sulfonate represented by the formula (2): ##STR2## [wherein M is an alkaline metal atom or an amino group] is provided. This ink is suitable for using for an ink-jet recording system because it provides a fast recorded image and is also superior in storage stability and jetting stability.Type: GrantFiled: February 2, 1995Date of Patent: April 9, 1996Assignee: Mita Industrial Co., Ltd.Inventors: Seiji Kado, Hiromi Kosaka, Masayuki Ishii
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Patent number: 5273853Abstract: A black photoconductive toner having sensitivity to light in the wavelength range of semiconductor lasers, the toner containing a resinous binder, photoconductive material, a sensitizer, and a perylene black pigment or yellow, magenta, or cyan quinone dyes.Type: GrantFiled: June 12, 1990Date of Patent: December 28, 1993Assignee: Mita Industrial Co., Ltd.Inventors: Akiyoshi Urano, Yumiko Sano, Seiji Kado, Kazushige Inoue