Patents by Inventor Seiya Yamano

Seiya Yamano 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: 9299797
    Abstract: A semiconductor memory device includes a pair of bit lines connected to a plurality of memory cells, a first transistor connected between the pair of bit lines, a second transistor between at least one of the pair of bit lines and a first power supply voltage line, and a diffusion layer region shared between the first transistor and the second transistor, and connected to the one of the pair of bit lines. A gate of the first transistor and a gate of the second transistor are connected to each other. A gate of the first transistor is provided such that both a direction of a gate width of the first transistor and a direction of a gate width of second transistor are on one identical extension line.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: March 29, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Hiroyuki Takahashi, Seiya Yamano
  • Publication number: 20150380507
    Abstract: A semiconductor memory device includes a pair of bit lines connected to a plurality of memory cells, a first transistor connected between the pair of bit lines, a second transistor between at least one of the pair of bit lines and a first power supply voltage line, and a diffusion layer region shared between the first transistor and the second transistor, and connected to the one of the pair of bit lines. A gate of the first transistor and a gate of the second transistor are connected to each other. A gate of the first transistor is provided such that both a direction of a gate width of the first transistor and a direction of a gate width of second transistor are on one identical extension line.
    Type: Application
    Filed: September 10, 2015
    Publication date: December 31, 2015
    Inventors: Hiroyuki Takahashi, Seiya Yamano
  • Patent number: 9142559
    Abstract: A semiconductor integrated circuit device includes a pair of complementary signal lines, a first transistor including a gate, a source, and a drain, one of the source and the drain of the first transistor being coupled to one of the pair of the complementary signal lines, and a second transistor including a gate, a source, and a drain, the gate of the second transistor being coupled to the gate of the first transistor, one of a source and a drain of the second transistor coupled to an other of the source and the drain of the first transistor, and an other of the source and the drain of the second transistor being coupled to the other of the pair of the complementary signal lines. A direction of a gate width of the first transistor is different from a direction of a gate width of the second transistor.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: September 22, 2015
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Hiroyuki Takahashi, Seiya Yamano
  • Publication number: 20150041922
    Abstract: A semiconductor integrated circuit device includes a pair of complementary signal lines, a first transistor including a gate, a source, and a drain, one of the source and the drain of the first transistor being coupled to one of the pair of the complementary signal lines, and a second transistor including a gate, a source, and a drain, the gate of the second transistor being coupled to the gate of the first transistor, one of a source and a drain of the second transistor coupled to an other of the source and the drain of the first transistor, and an other of the source and the drain of the second transistor being coupled to the other of the pair of the complementary signal lines. A direction of a gate width of the first transistor is different from a direction of a gate width of the second transistor.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 12, 2015
    Inventors: Hiroyuki Takahashi, Seiya Yamano
  • Patent number: 8908455
    Abstract: Transistors formed in one identical diffusion layer and performing complementary operations are generally arranged symmetrically with respect to the diffusion layer. A semiconductor integrated device using a layout capable of partially avoiding restriction on the design of the semiconductor integrated circuit device and reducing the size and economizing the manufacturing cost is provided by breaking the stereotype idea. The size of the semiconductor integrated circuit device can be decreased further by arranging two transistors formed in one identical diffusion layer and conducting complementary operations by intentionally arranging them in an asymmetric pattern.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: December 9, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Hiroyuki Takahashi, Seiya Yamano
  • Publication number: 20120262978
    Abstract: Transistors formed in one identical diffusion layer and performing complementary operations are generally arranged symmetrically with respect to the diffusion layer. A semiconductor integrated device using a layout capable of partially avoiding restriction on the design of the semiconductor integrated circuit device and reducing the size and economizing the manufacturing cost is provided by breaking the stereotype idea. The size of the semiconductor integrated circuit device can be decreased further by arranging two transistors formed in one identical diffusion layer and conducting complementary operations by intentionally arranging them in an asymmetric pattern.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 18, 2012
    Applicant: Renesas Electronics Corporation
    Inventors: Hiroyuki TAKAHASHI, Seiya YAMANO
  • Patent number: 6291879
    Abstract: On a semiconductor integrated circuit chip, multiple equipotential power-line conductors are provided to supply power to circuit elements. First protecting elements are provided for interconnecting the power-line conductors for protecting the circuit elements. A number of input/output pads are also connected to the power-line conductors via second protecting elements. The arrangement is such that the contact positions of any of the first protecting elements and any of the second protecting elements on the power-line conductors are nearer to respective end portions of the conductors than the contact position of any of the circuit elements on the conductors. Each of the contact positions serves as a dividing point for dividing a high potential electrostatic charge into at least two low potential charges.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: September 18, 2001
    Assignee: NEC Corporation
    Inventor: Seiya Yamano