Patents by Inventor Tatsuo Matsuda

Tatsuo Matsuda 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: 20230261426
    Abstract: A first connector 10 configured to be attached to a connection object 40 that includes a plurality of contact lines 42 exposed at a tip of the connection object 40 and a ground portion 43 covering part of the plurality of contact lines 42, comprises: a first insulator 20 including a holding portion 24 configured to hold the connection object 40 in a state of accommodating the tip; and a first metal member 30 attached to the first insulator 20, wherein the first metal member 30 includes: a first base portion 31 that is plate-shaped; a first contact portion 32 configured to extend from the first base portion 31 toward the tip and contact the plurality of contact lines 42; and a second contact portion 33 configured to be located more on a side opposite to the tip than the first contact portion 32 and contact the ground portion 43.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 17, 2023
    Inventors: Fumihito IKEGAMI, Masayoshi KAKINO, Tatsuo MATSUDA, Chiaki KOJIMA
  • Patent number: 11715582
    Abstract: A shielded flat cable includes multiple flat conductors arranged in parallel, a lower insulating layer provided on lower surfaces of the multiple conductors, a lower shield layer provided on a lower surface of the lower insulating layer, a lower protective layer provided on a lower surface of the lower shield layer, a lower contact portion that is exposed from the lower protective layer and provided to contact a second contact member of the connector, and that is electrically coupled to the lower shield layer, a terminal in which the multiple conductors are exposed at an end, and a reinforcing plate provided on the lower surface of the lower insulating layer and the lower surfaces of the multiple conductors at the terminal. The multiple conductors extend along the lower insulating layer and the reinforcing plate, and the lower contact portion and the terminal overlap in a side view.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: August 1, 2023
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Chiaki Kojima, Tatsuo Matsuda
  • Publication number: 20220384998
    Abstract: A shielded flat cable includes a first differential signal line pair including mutually parallel first and second signal lines, first and second ground lines parallel to the first differential signal line pair arranged between the first and second ground lines, an insulating layer covering the first differential signal line pair, the first and second ground lines, a first shielding layer covering a first surface of the insulating layer, and a second shielding layer covering a second surface of the insulating layer, opposite to the first surface. The insulating layer includes an opening exposing the first ground line at the first surface of the insulating layer, and the first shielding layer is electrically connected to the first ground line through the opening. A width of the first ground line is greater than a width of each of the first and second signal lines.
    Type: Application
    Filed: February 4, 2022
    Publication date: December 1, 2022
    Inventors: Tatsuo MATSUDA, Masamichi YAMAMOTO
  • Patent number: 11410790
    Abstract: With respect to a connector for attachment to a shielded flat cable including a signal wire and a ground wire arranged in parallel, an insulating layer covering the signal wire and the ground wire; and a first shield layer and a second shield layer respectively covering both sides of the insulating layer, wherein a terminal in which the signal wire and the ground wire are exposed is formed on a first shield layer side at an end in a longitudinal direction, the connector includes a casing, wherein the casing includes a bottom to face the first shield layer or the second shield layer, a top to face the first shield layer or the second shield layer, a side wall connected to the bottom and the top, a signal wire contact member, a ground wire contact member, and the connector further includes a signal wire contact member configured to come in contact with the signal wire of the terminal upon the shielded flat cable being attached, a ground wire contact member configured to come in contact with the ground wire of t
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 9, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Chiaki Kojima, Tatsuo Matsuda
  • Publication number: 20220172861
    Abstract: A shielded flat cable includes multiple flat conductors arranged in parallel, a lower insulating layer provided on lower surfaces of the multiple conductors, a lower shield layer provided on a lower surface of the lower insulating layer, a lower protective layer provided on a lower surface of the lower shield layer, a lower contact portion that is exposed from the lower protective layer and provided to contact a second contact member of the connector, and that is electrically coupled to the lower shield layer, a terminal in which the multiple conductors are exposed at an end, and a reinforcing plate provided on the lower surface of the lower insulating layer and the lower surfaces of the multiple conductors at the terminal. The multiple conductors extend along the lower insulating layer and the reinforcing plate, and the lower contact portion and the terminal overlap in a side view.
    Type: Application
    Filed: February 15, 2022
    Publication date: June 2, 2022
    Inventors: Chiaki KOJIMA, Tatsuo MATSUDA
  • Patent number: 11309103
    Abstract: A shielded flat cable 1 includes one or more ground wires G1, the ground wires G1 being arrayed parallel to each other, one or more signal wires S1 and S2 arrayed parallel to the one or more ground wires G1, insulating layers 11 and 12 covering the one or more ground wires G1 and the signal wires S1 and S2, and shield layers 21 and 22 provided on outer surfaces of the insulating layers 11 and 12. In a cross-section of the one or more ground wires, the insulating layers 11 and 12 include openings 13 and 14 of which bottoms are respectively an upper surface and a lower surface of one ground wire G1, and the one ground wire G1 and the shield layers 21 and 22 are electrically coupled at the openings 13 and 14, and the signal wires S1 and S2 are surrounded by the one or more ground wires G1 and the shield layers 21 and 22.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: April 19, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Manabu Nagano, Go Hirakawa, Shin Sato, Tatsuo Matsuda
  • Patent number: 11289241
    Abstract: A shielded flat cable including conductors 110, a lower insulating layer 122 bonded on lower surfaces 112 of the conductors 110, a lower dielectric layer 132 bonded on a lower surface 122a of the insulating layer 122, a lower shield layer 142 bonded on a lower surface 132a of the lower dielectric layer 132, a terminal T in which the conductors 110 are exposed at an end in a longitudinal direction, a reinforcing plate 160 bonded on the lower surface 122a of the lower insulating layer 122 and the lower surfaces 112 of the conductors 110 at the terminal T, and a grounding member 170 bonded on a lower surface 162 of the reinforcing plate 160 and a lower surface 142a of the lower shield layer 142 to be electrically coupled to the lower shield layer 142 is provided, wherein the grounding member 170 extends to under the terminal T.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: March 29, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Chiaki Kojima, Tatsuo Matsuda
  • Patent number: 11244772
    Abstract: A flat cable includes: a plurality of conductors arranged in parallel; an insulating layer formed, on first surfaces of the plurality of conductors and on second surfaces that are opposite surfaces of the first surfaces, along the plurality of conductors; an exposed portion where the first surfaces at end portions of the conductors are exposed to outside; and a reinforcement plate formed on the second surfaces opposite to the exposed portion. On the second surfaces opposite to the exposed portion, the reinforcement plate is directly formed on the conductors, and on the second surfaces opposite to the first surfaces that are in continuous with the exposed portion, the reinforcement plate is formed between the conductors and the insulating layer on the second surfaces.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: February 8, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Chiaki Kojima, Tatsuo Matsuda
  • Patent number: 11145437
    Abstract: A shielded flat cable includes a plurality of flat conductors arranged in parallel, a pair of resin insulating layers sandwiching the flat conductors from both sides of a parallel surface of the flat conductors, and covering portions other than end portions of the flat conductors in a length direction, a pair of shield layers in contact with an outer surface of at least one resin insulating layer of the pair of resin insulating layers, and a pair of first resin films with an adhesive covering an outer surface of the pair of resin insulating layers or the shield layer. A dielectric loss tangent of the resin insulating layer, of the pair of resin insulating layers, in contact with the shield layer is 0.001 or less at 10 GHz, and the adhesive or the pair of first resin films is made of a flame retardant material.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: October 12, 2021
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Chiaki Kojima, Yutaka Fukuda, Tatsuo Matsuda
  • Publication number: 20210249153
    Abstract: A lower insulating layer 122 bonded on lower surfaces 112 of conductors 110, a lower dielectric layer 132 bonded on a lower surface 122a of the insulating layer 122, a lower shield layer 142a bonded on a lower surface 132a of the lower dielectric layer 132, a terminal T in which the conductors 110 are exposed at an end in a longitudinal direction, a reinforcing plate 160 bonded on the lower surface 122a of the lower insulating layer 122 and the lower surfaces 112 of the conductors 110 at the terminal T, and a grounding member 170 bonded on a lower surface 162 of the reinforcing plate 160 and a lower surface 142a of the lower shield layer 142 to be electrically coupled to the lower shield layer 142 are provided, wherein the grounding member 170 extends to under the terminal T.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 12, 2021
    Inventors: Chiaki KOJIMA, Tatsuo MATSUDA
  • Publication number: 20210249803
    Abstract: With respect to a connector for attachment to a shielded flat cable including a signal wire and a ground wire arranged in parallel, an insulating layer covering the signal wire and the ground wire; and a first shield layer and a second shield layer respectively covering both sides of the insulating layer, wherein a terminal in which the signal wire and the ground wire are exposed is formed on a first shield layer side at an end in a longitudinal direction, the connector includes a casing, wherein the casing includes a bottom to face the first shield layer or the second shield layer, a top to face the first shield layer or the second shield layer, a side wall connected to the bottom and the top, a signal wire contact member, a ground wire contact member, and the connector further includes a signal wire contact member configured to come in contact with the signal wire of the terminal upon the shielded flat cable being attached, a ground wire contact member configured to come in contact with the ground wire of t
    Type: Application
    Filed: March 28, 2019
    Publication date: August 12, 2021
    Inventors: Chiaki KOJIMA, Tatsuo MATSUDA
  • Publication number: 20210233680
    Abstract: A flat cable includes: a plurality of conductors arranged in parallel; an insulating layer formed, on first surfaces of the plurality of conductors and on second surfaces that are opposite surfaces of the first surfaces, along the plurality of conductors; an exposed portion where the first surfaces at end portions of the conductors are exposed to outside; and a reinforcement plate formed on the second surfaces opposite to the exposed portion. On the second surfaces opposite to the exposed portion, the reinforcement plate is directly formed on the conductors, and on the second surfaces opposite to the first surfaces that are in continuous with the exposed portion, the reinforcement plate is formed between the conductors and the insulating layer on the second surfaces.
    Type: Application
    Filed: June 25, 2019
    Publication date: July 29, 2021
    Inventors: Chiaki KOJIMA, Tatsuo MATSUDA
  • Publication number: 20210166836
    Abstract: A shielded flat cable 1 includes one or more ground wires G1, the ground wires G1 being arrayed parallel to each other, one or more signal wires S1 and S2 arrayed parallel to the one or more ground wires G1, insulating layers 11 and 12 covering the one or more ground wires G1 and the signal wires S1 and S2, and shield layers 21 and 22 provided on outer surfaces of the insulating layers 11 and 12. In a cross-section of the one or more ground wires, the insulating layers 11 and 12 include openings 13 and 14 of which bottoms are respectively an upper surface and a lower surface of one ground wire G1, and the one ground wire G1 and the shield layers 21 and 22 are electrically coupled at the openings 13 and 14, and the signal wires S1 and S2 are surrounded by the one or more ground wires G1 and the shield layers 21 and 22.
    Type: Application
    Filed: April 11, 2019
    Publication date: June 3, 2021
    Inventors: Manabu NAGANO, Go HIRAKAWA, Shin SATO, Tatsuo MATSUDA
  • Publication number: 20210090761
    Abstract: A shielded flat cable includes a plurality of flat conductors arranged in parallel, a pair of resin insulating layers sandwiching the flat conductors from both sides of a parallel surface of the flat conductors, and covering portions other than end portions of the flat conductors in a length direction, a pair of shield layers in contact with an outer surface of at least one resin insulating layer of the pair of resin insulating layers, and a pair of first resin films with an adhesive covering an outer surface of the pair of resin insulating layers or the shield layer. A dielectric loss tangent of the resin insulating layer, of the pair of resin insulating layers, in contact with the shield layer is 0.001 or less at 10 GHz, and the adhesive or the pair of first resin films is made of a flame retardant material.
    Type: Application
    Filed: February 23, 2018
    Publication date: March 25, 2021
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Chiaki KOJIMA, Yutaka FUKUDA, Tatsuo MATSUDA
  • Patent number: 10726971
    Abstract: A shielded flat cable includes conductors arranged parallel to each other and respectively having a first surface and a second surface opposite to the first surface, a first insulator provided on the first surface of each of the conductors, and a second insulator provided on the second surface of each of the conductors. The first surface of each of the conductors includes an exposed surface at an end part along a longitudinal direction. The shielded flat cable further includes a shield member that includes a metal layer and is configured to cover the first insulator and a portion of the exposed surface of the first surface, via a resin layer.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: July 28, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Chiaki Kojima, Tatsuo Matsuda
  • Publication number: 20190371494
    Abstract: A shielded flat cable includes conductors arranged parallel to each other and respectively having a first surface and a second surface opposite to the first surface, a first insulator provided on the first surface of each of the conductors, and a second insulator provided on the second surface of each of the conductors. The first surface of each of the conductors includes an exposed surface at an end part along a longitudinal direction. The shielded flat cable further includes a shield member that includes a metal layer and is configured to cover the first insulator and a portion of the exposed surface of the first surface, via a resin layer.
    Type: Application
    Filed: May 20, 2019
    Publication date: December 5, 2019
    Inventors: Chiaki KOJIMA, Tatsuo MATSUDA
  • Publication number: 20190300756
    Abstract: A resin composition according to an embodiment of the present invention for a flat cable-reinforcing tape contains a polyester, a polyurethane, and a polycarbodiimide, in which the mass ratio of the polyurethane to the polyester is 40/60 or more and 80/20 or less. A flat cable-reinforcing tape according to an embodiment of the present invention includes a base layer containing a resin as a main component and an adhesive layer stacked on the base layer, the adhesive layer containing the resin composition. A flat cable according to an embodiment of the present invention includes one or a plurality of conductors, a pair of covering materials that hold the one or plurality of conductors therebetween, and the flat cable-reinforcing tape.
    Type: Application
    Filed: May 23, 2017
    Publication date: October 3, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Yutaka FUKUDA, Shinya NISHIKAWA, Shoei YONEZAWA, Tatsuo MATSUDA
  • Patent number: 8490965
    Abstract: A sheet-supplying device has a sheet-accommodating tray, a raising/lowering unit, a first position sensor, a second position sensor, a controlling unit. The raising/lowering unit raises and lowers the sheet-accommodating tray substantially. The first position sensor detects a first position indicating a position in the stacked direction of one end portion of a topmost sheet stacked in the sheet-accommodating tray. The second position sensor detects a second position indicating a position in the stacked direction of another end portion of the topmost sheet. The controlling unit controls the raising/lowering unit to raise or lower the sheet-accommodating tray based on both the first position detected by the first position sensor and the second position detected by the second position sensor so that one end of the topmost sheet in the stacked status is positioned at a prescribed position in the stacked direction.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: July 23, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Ueda, Shingo Takai, Tatsuo Matsuda, Kazuhiko Kawasaki
  • Patent number: 8403319
    Abstract: A sheet-supplying device has a sheet-accommodating tray, a raising/lowering unit, a first position sensor, a second position sensor, a controlling unit. The raising/lowering unit raises and lowers the sheet-accommodating tray substantially. The first position sensor detects a first position indicating a position in the stacked direction of one end portion of a topmost sheet stacked in the sheet-accommodating tray. The second position sensor detects a second position indicating a position in the stacked direction of another end portion of the topmost sheet. The controlling unit controls the raising/lowering unit to raise or lower the sheet-accommodating tray based on both the first position detected by the first position sensor and the second position detected by the second position sensor so that one end of the topmost sheet in the stacked status is positioned at a prescribed position in the stacked direction.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: March 26, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Ueda, Shingo Takai, Tatsuo Matsuda, Kazuhiko Kawasaki
  • Publication number: 20120153560
    Abstract: A sheet-supplying device has a sheet-accommodating tray, a raising/lowering unit, a first position sensor, a second position sensor, a controlling unit. The raising/lowering unit raises and lowers the sheet-accommodating tray substantially. The first position sensor detects a first position indicating a position in the stacked direction of one end portion of a topmost sheet stacked in the sheet-accommodating tray. The second position sensor detects a second position indicating a position in the stacked direction of another end portion of the topmost sheet. The controlling unit controls the raising/lowering unit to raise or lower the sheet-accommodating tray based on both the first position detected by the first position sensor and the second position detected by the second position sensor so that one end of the topmost sheet in the stacked status is positioned at a prescribed position in the stacked direction.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 21, 2012
    Inventors: Satoshi Ueda, Shingo Takai, Tatsuo Matsuda, Kazuhiko Kawasaki