Patents by Inventor Masato Suga

Masato Suga 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: 10920907
    Abstract: A diagnosis method is provided for appropriately predicting a state change of a valve with a simple configuration.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: February 16, 2021
    Assignees: TOMOE VALVE CO., LTD., THE RITSUMEIKAN TRUST
    Inventors: Masato Suga, Manabu Miyamoto, Yasutoshi Nomura
  • Publication number: 20190107463
    Abstract: A diagnosis method is provided for appropriately predicting a state change of a valve with a simple configuration.
    Type: Application
    Filed: March 16, 2017
    Publication date: April 11, 2019
    Inventors: Masato SUGA, Manabu MIYAMOTO, Yasutoshi NOMURA
  • Patent number: 8884375
    Abstract: A disclosed semiconductor integrated circuit device includes a semiconductor substrate; and multiple semiconductor elements disposed on the semiconductor substrate. The semiconductor elements include an n-channel MOS transistor and a p-channel MOS transistor. The n-channel MOS transistor is covered by a tensile stress film, and the p-channel MOS transistor is covered by a compressive stress film. A dummy region, the entire surface of which is covered by a combination of the tensile stress film and the compressive stress film, is disposed on the surface of the semiconductor substrate.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: November 11, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Satoshi Nakai, Masato Suga, Jusuke Ogura
  • Patent number: 8790974
    Abstract: A method of manufacturing a semiconductor integrated circuit device which includes a semiconductor substrate; and multiple semiconductor elements disposed on the semiconductor substrate. The semiconductor elements include an n-channel MOS transistor and a p-channel MOS transistor. The n-channel MOS transistor is covered by a tensile stress film, and the p-channel MOS transistor is covered by a compressive stress film. A dummy region, the entire surface of which is covered by a combination of the tensile stress film and the compressive stress film, is disposed on the surface of the semiconductor substrate.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: July 29, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Satoshi Nakai, Masato Suga, Jusuke Ogura
  • Publication number: 20140024224
    Abstract: A method of manufacturing a semiconductor integrated circuit device which includes a semiconductor substrate; and multiple semiconductor elements disposed on the semiconductor substrate. The semiconductor elements include an n-channel MOS transistor and a p-channel MOS transistor. The n-channel MOS transistor is covered by a tensile stress film, and the p-channel MOS transistor is covered by a compressive stress film. A dummy region, the entire surface of which is covered by a combination of the tensile stress film and the compressive stress film, is disposed on the surface of the semiconductor substrate.
    Type: Application
    Filed: September 20, 2013
    Publication date: January 23, 2014
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Satoshi Nakai, Masato Suga, Jusuke Ogura
  • Publication number: 20100001350
    Abstract: A disclosed semiconductor integrated circuit device includes a semiconductor substrate; and multiple semiconductor elements disposed on the semiconductor substrate. The semiconductor elements include an n-channel MOS transistor and a p-channel MOS transistor. The n-channel MOS transistor is covered by a tensile stress film, and the p-channel MOS transistor is covered by a compressive stress film. A dummy region, the entire surface of which is covered by a combination of the tensile stress film and the compressive stress film, is disposed on the surface of the semiconductor substrate.
    Type: Application
    Filed: September 17, 2009
    Publication date: January 7, 2010
    Applicant: FUJITSU MICROELECTRONICS LIMITED
    Inventors: Satoshi Nakai, Masato Suga, Jusuke Ogura
  • Patent number: 7642624
    Abstract: A multilayer interconnection structure of a semiconductor device includes a first guard ring extending continuously along a periphery of a substrate and a second guard ring extending continuously in the multilayer interconnection structure along the periphery so as to be encircled by the first guard ring and so as to encircle an interconnection pattern inside the multilayer interconnection structure, wherein the first and second guard rings are connected with each other mechanically and continuously by a bridging conductor pattern extending continuously in a band form along a region including the first and second guard rings when viewed in the direction perpendicular to the substrate.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: January 5, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Shigetoshi Wakayama, Matsuaki Kai, Hiroyuki Kato, Masato Suga
  • Patent number: 7393775
    Abstract: A semiconductor integrated circuit device having a plurality of circuit elements and a plurality of wires connecting the circuit elements, includes an orthogonal wire having a first minimum wire width which is formed on a first wiring layer and extends horizontally or vertically; a diagonal wire having a second minimum wire width which is substantially equal to the first minimum wire width, formed on a second wiring layer which differs from the first wiring layer and extending in a diagonal direction in relation to the orthogonal wire; and a via having a size which is no greater than the first or second wire width, formed at point at which the orthogonal wire and diagonal wire overlap so as to connect the orthogonal wire and diagonal wire, wherein one of the diagonal wire and orthogonal wire includes an enlarged wire width region in the position at which the via is formed, the wire width of the enlarged wire width region being enlarged beyond the first or second minimum wire width.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: July 1, 2008
    Assignee: Fujitsu Limited
    Inventor: Masato Suga
  • Publication number: 20070257371
    Abstract: A multilayer interconnection structure of a semiconductor device includes a first guard ring extending continuously along a periphery of a substrate and a second guard ring extending continuously in the multilayer interconnection structure along the periphery so as to be encircled by the first guard ring and so as to encircle an interconnection pattern inside the multilayer interconnection structure, wherein the first and second guard rings are connected with each other mechanically and continuously by a bridging conductor pattern extending continuously in a band form along a region including the first and second guard rings when viewed in the direction perpendicular to the substrate.
    Type: Application
    Filed: July 6, 2007
    Publication date: November 8, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Shigetoshi Wakayama, Mutsuaki Kai, Hiroyuki Kato, Masato Suga
  • Publication number: 20070200245
    Abstract: Capacitance generated by a dummy pattern can be reduced without lowering wiring density by arranging the dummy pattern on one wiring layer in a manner responding to an actual pattern or the dummy pattern on the other wiring layer, whereby at least one of the following can be improved: distances between dummy patterns on different wiring layers, overlapped areas of dummy patterns, and such side length of the dummy pattern as opposed to the actual pattern on the same wiring layer.
    Type: Application
    Filed: May 1, 2007
    Publication date: August 30, 2007
    Applicant: Fujitsu Limited
    Inventor: Masato Suga
  • Patent number: 7256474
    Abstract: A multilayer interconnection structure of a semiconductor device includes a first guard ring extending continuously along a periphery of a substrate and a second guard ring extending continuously in the multilayer interconnection structure along the periphery so as to be encircled by the first guard ring and so as to encircle an interconnection pattern inside the multilayer interconnection structure, wherein the first and second guard rings are connected with each other mechanically and continuously by a bridging conductor pattern extending continuously in a band form along a region including the first and second guard rings when viewed in the direction perpendicular to the substrate.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: August 14, 2007
    Assignee: Fujitsu Limited
    Inventors: Shigetoshi Wakayama, Mutsuaki Kai, Hiroyuki Kato, Masato Suga
  • Patent number: 7226855
    Abstract: A semiconductor integrated circuit device having a plurality of circuit elements and a plurality of wires connecting the circuit elements, includes an orthogonal wire having a first minimum wire width which is formed on a first wiring layer and extends horizontally or vertically; a diagonal wire having a second minimum wire width which is substantially equal to the first minimum wire width, formed on a second wiring layer which differs from the first wiring layer and extending in a diagonal direction in relation to the orthogonal wire; and a via having a size which is no greater than the first or second wire width, formed at point at which the orthogonal wire and diagonal wire overlap so as to connect the orthogonal wire and diagonal wire, wherein one of the diagonal wire and orthogonal wire includes an enlarged wire width region in the position at which the via is formed, the wire width of the enlarged wire width region being enlarged beyond the first or second minimum wire width.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: June 5, 2007
    Assignee: Fujitsu Limited
    Inventor: Masato Suga
  • Publication number: 20070117231
    Abstract: A semiconductor integrated circuit device having a plurality of circuit elements and a plurality of wires connecting the circuit elements, includes an orthogonal wire having a first minimum wire width which is formed on a first wiring layer and extends horizontally or vertically; a diagonal wire having a second minimum wire width which is substantially equal to the first minimum wire width, formed on a second wiring layer which differs from the first wiring layer and extending in a diagonal direction in relation to the orthogonal wire; and a via having a size which is no greater than the first or second wire width, formed at point at which the orthogonal wire and diagonal wire overlap so as to connect the orthogonal wire and diagonal wire, wherein one of the diagonal wire and orthogonal wire includes an enlarged wire width region in the position at which the via is formed, the wire width of the enlarged wire width region being enlarged beyond the first or second minimum wire width.
    Type: Application
    Filed: January 16, 2007
    Publication date: May 24, 2007
    Applicant: FUJITSU LIMITED
    Inventor: Masato Suga
  • Publication number: 20070090486
    Abstract: The fuse comprises an interconnection part 14 luding a silicon layer; a contact part 20b connected one end of the interconnection part 14; and a contact part 20aconnected to the other end of the interconnection part 14 and containing a metal material. A current is flowed from the contact part 20bto the contact part 20a to migrate the metal material of the contact part 20a to the silicon layer to thereby change the contact resistance between the interconnection part 14 and the contact part 20a.
    Type: Application
    Filed: January 23, 2006
    Publication date: April 26, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi Otsuka, Toyoji Sawada, Masato Suga, Jun Nagayama, Motonobu Sato, Takashi Suzuki
  • Patent number: 7183659
    Abstract: A semiconductor integrated circuit device having a plurality of circuit elements and a plurality of wires connecting the circuit elements, includes an orthogonal wire having a first minimum wire width which is formed on a first wiring layer and extends horizontally or vertically; a diagonal wire having a second minimum wire width which is substantially equal to the first minimum wire width, formed on a second wiring layer which differs from the first wiring layer and extending in a diagonal direction in relation to the orthogonal wire; and a via having a size which is no greater than the first or second wire width, formed at point at which the orthogonal wire and diagonal wire overlap so as to connect the orthogonal wire and diagonal wire, wherein one of the diagonal wire and orthogonal wire includes an enlarged wire width region in the position at which the via is formed, the wire width of the enlarged wire width region being enlarged beyond the first or second minimum wire width.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: February 27, 2007
    Assignee: Fujitsu Limited
    Inventor: Masato Suga
  • Publication number: 20060223304
    Abstract: A first dummy pattern is arranged in the region allowed to generate the first dummy pattern, after that, the second dummy pattern is generated in the region not allowed to generate the first dummy pattern but allowed to generate the second dummy pattern to thereby enable to arrange the dummy patterns in an efficient manner in the wiring layer, so that the wiring density can be improved and differences in the wiring densities can be reduced.
    Type: Application
    Filed: June 5, 2006
    Publication date: October 5, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Masato Suga, Satoshi Otsuka
  • Publication number: 20060118967
    Abstract: A semiconductor integrated circuit device having a plurality of circuit elements and a plurality of wires connecting the circuit elements, includes an orthogonal wire having a first minimum wire width which is formed on a first wiring layer and extends horizontally or vertically; a diagonal wire having a second minimum wire width which is substantially equal to the first minimum wire width, formed on a second wiring layer which differs from the first wiring layer and extending in a diagonal direction in relation to the orthogonal wire; and a via having a size which is no greater than the first or second wire width, formed at point at which the orthogonal wire and diagonal wire overlap so as to connect the orthogonal wire and diagonal wire, wherein one of the diagonal wire and orthogonal wire includes an enlarged wire width region in the position at which the via is formed, the wire width of the enlarged wire width region being enlarged beyond the first or second minimum wire width.
    Type: Application
    Filed: January 25, 2006
    Publication date: June 8, 2006
    Applicant: FUJITSU LIMITED
    Inventor: Masato Suga
  • Publication number: 20060118966
    Abstract: A semiconductor integrated circuit device having a plurality of circuit elements and a plurality of wires connecting the circuit elements, includes an orthogonal wire having a first minimum wire width which is formed on a first wiring layer and extends horizontally or vertically; a diagonal wire having a second minimum wire width which is substantially equal to the first minimum wire width, formed on a second wiring layer which differs from the first wiring layer and extending in a diagonal direction in relation to the orthogonal wire; and a via having a size which is no greater than the first or second wire width, formed at point at which the orthogonal wire and diagonal wire overlap so as to connect the orthogonal wire and diagonal wire, wherein one of the diagonal wire and orthogonal wire includes an enlarged wire width region in the position at which the via is formed, the wire width of the enlarged wire width region being enlarged beyond the first or second minimum wire width.
    Type: Application
    Filed: January 25, 2006
    Publication date: June 8, 2006
    Applicant: FUJITSU LIMITED
    Inventor: Masato Suga
  • Patent number: 7023094
    Abstract: A semiconductor integrated circuit device having a plurality of circuit elements and a plurality of wires connecting the circuit elements, includes an orthogonal wire having a first minimum wire width which is formed on a first wiring layer and extends horizontally or vertically; a diagonal wire having a second minimum wire width which is substantially equal to the first minimum wire width, formed on a second wiring layer which differs from the first wiring layer and extending in a diagonal direction in relation to the orthogonal wire; and a via having a size which is no greater than the first or second wire width, formed at point at which the orthogonal wire and diagonal wire overlap so as to connect the orthogonal wire and diagonal wire, wherein one of the diagonal wire and orthogonal wire includes an enlarged wire width region in the position at which the via is formed, the wire width of the enlarged wire width region being enlarged beyond the first or second minimum wire width.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: April 4, 2006
    Assignee: Fujitsu Limited
    Inventor: Masato Suga
  • Patent number: 6940317
    Abstract: A semiconductor integrated circuit includes first and second field-effect transistors which have on/off states thereof being controlled by an incoming signal varying within a first potential range, third and fourth field-effect transistors which are controlled by the on/off states of the first and second filed-effect transistors, a node from which an output signal varying within a second potential range is output according to the on/off states of the first through fourth field-effect transistors, and a control circuit which controls a substrate-bias potential of the first field-effect transistor in response to the incoming signal.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: September 6, 2005
    Assignee: Fujitsu Limited
    Inventor: Masato Suga