Patents by Inventor Yasuhiro Tokunaga

Yasuhiro Tokunaga 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: 20240122230
    Abstract: According to the present invention, a flavoring-loaded component for a tobacco product includes a component for a tobacco product and a flavoring composition that is loaded on the component and includes a flavoring and an emulsifier that has an HLB of 1-7.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 18, 2024
    Applicant: Japan Tobacco Inc.
    Inventors: Kojiro TOKUNAGA, Yuta Okamoto, Naoya Tsuruoka, Tetsuya Motodamari, Yasuhiro Nakagawa
  • Patent number: 8281158
    Abstract: A semiconductor integrated circuit having an internal circuit group, which includes at least one internal circuit, includes a plurality of process monitoring circuits, each of which is disposed at a different location in the internal circuit group, each of the process monitoring circuits, which is operated in response to a power supply voltage, detecting monitoring data in the area where one of the process monitoring circuits is disposed, and a power supply voltage generating circuit generating the power supply voltage corresponding to the monitoring data, and supplying the power supply voltage to the internal circuit group.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: October 2, 2012
    Assignee: Lapis Semiconductor Co., Ltd.
    Inventor: Yasuhiro Tokunaga
  • Patent number: 7649373
    Abstract: A semiconductor integrated circuit includes one or more voltage drop detection circuits located at one or more measurement points within the integrated circuit to detect drops in the power supply potential at those points. The voltage drop detection circuits output signals indicating whether the power supply potential is within tolerance, or whether the power supply potential has fallen and corrective action is required. Being located near the measurement points, the voltage drop detection circuits can measure the power supply potential without being disturbed by electrical noise elsewhere in the semiconductor integrated circuit. The signals output by the voltage detection circuits can be reliably brought to external terminals despite the presence of such noise, because the output signals are bi-level signals.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: January 19, 2010
    Assignee: Oki Semiconductor Co., Ltd.
    Inventor: Yasuhiro Tokunaga
  • Publication number: 20080297233
    Abstract: A semiconductor integrated circuit having an internal circuit group, which includes at least one internal circuit, includes a plurality of process monitoring circuits, each of which is disposed at a different location in the internal circuit group, each of the process monitoring circuits, which is operated in response to a power supply voltage, detecting monitoring data in the area where one of the process monitoring circuits is disposed, and a power supply voltage generating circuit generating the power supply voltage corresponding to the monitoring data, and supplying the power supply voltage to the internal circuit group.
    Type: Application
    Filed: March 19, 2008
    Publication date: December 4, 2008
    Inventor: Yasuhiro Tokunaga
  • Publication number: 20080068045
    Abstract: A semiconductor integrated circuit includes one or more voltage drop detection circuits located at one or more measurement points within the integrated circuit to detect drops in the power supply potential at those points. The voltage drop detection circuits output signals indicating whether the power supply potential is within tolerance, or whether the power supply potential has fallen and corrective action is required. Being located near the measurement points, the voltage drop detection circuits can measure the power supply potential without being disturbed by electrical noise elsewhere in the semiconductor integrated circuit. The signals output by the voltage detection circuits can be reliably brought to external terminals despite the presence of such noise, because the output signals are bi-level signals.
    Type: Application
    Filed: July 20, 2007
    Publication date: March 20, 2008
    Inventor: Yasuhiro Tokunaga
  • Patent number: 6896408
    Abstract: A temperature detection circuit is provided inside a chip which is the same in which a CPU is provided, and includes a temperature detection part having a PMOS transistor and an NMOS transistor connected in series between a power supply potential VDD and a grounding potential. A stray capacitance between a junction (live node) between the PMOS transistor and the NMOS transistor, and the grounding potential, is charged with a current differential between the off leak current of the PMOS transistor and the off leak current of the NMOS transistor, thereby changing the potential of the live node. When the changed potential reaches a level of a threshold value in a given period of time, it is decided that the temperature of the CPU reaches a set temperature.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: May 24, 2005
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Yasuhiro Tokunaga
  • Publication number: 20040184510
    Abstract: A temperature detection circuit is provided inside a chip which is the same as a CPU, and it comprises a temperature detection part comprised of a PMOS transistor and an NMOS transistor connected in series between a power supply potential VDD and a grounding potential, wherein a stray capacitance between a junction (live node) between the PMOS transistor and the NMOS transistor and the grounding potential is charged with a current differential between the off leak current of the PMOS transistor and the off leak current of the NMOS transistor, thereby changing the potential of the live node, and when the changed potential reaches a level of a threshold value in a given period of time, it is decided that the temperature of the CPU reaches a set temperature.
    Type: Application
    Filed: September 24, 2003
    Publication date: September 23, 2004
    Inventor: Yasuhiro Tokunaga
  • Patent number: 6195771
    Abstract: Disclosed herein is a semiconductor device having a semiconductor memory circuit whose operation is tested in combination with an external test means to specify defective portions produced in a memory section of the semiconductor memory circuit and shorten the time necessary for its test.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: February 27, 2001
    Assignee: Oki Electric Industry Co., Ltd
    Inventors: Tetsuya Tanabe, Satoru Tanoi, Yasuhiro Tokunaga
  • Patent number: 5444662
    Abstract: A dynamic random access memory of the complementary MOS transistor type has memory cells connected between complementary bit lines on one side of a pair of transfer gates and a sense amplifier connected to nodes on the other side of the transfer gates, so that the sense amplifier can be connected to the bit lines and memory cells through the pair of transfer gates. A sense amplifier equalizing circuit and a bit line equalizing circuit are provided on opposite sides of the transfer gates so that the potentials on the bit lines can be equalized independently of equalization of the potentials on the nodes. Accordingly, there is no delay in the equalization due to the transfer gates connecting the nodes to the bit lines.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: August 22, 1995
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Takayuki Tanaka, Yoshimasa Sekino, Yoshihiro Murashima, Yasuhiro Tokunaga, Joji Ueno, Takeru Yonaga
  • Patent number: 5274585
    Abstract: A semiconductor memory device includes a plurality of bit lines, a plurality of memory cells connected to the bit line. The semiconductor memory device also includes control circuits, a first control line and a second control line. The control circuit outputs a control signal. The first control line is formed by a first low resistance conductive layer and is connected to the control circuit to transfer the control signal. The first control signal extends to a first direction. A second control line is formed by a second low resistance conductive layer which is separated from the first conductive layer by an insulating layer. The second control line is connected to the control circuit to transfer the control signal and extends to a second direction which is substantially different from the first direction.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: December 28, 1993
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Junichi Suyama, Yasuhiro Tokunaga