Patents by Inventor Hiroshi Matsubara

Hiroshi Matsubara 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: 6501118
    Abstract: A highly reliable semiconductor device having an underlying film with a trench and a conducting material film formed in the trench, a method of manufacturing the same and a method of forming a resist pattern used therein are obtained. The underlying film having an upper surface and the trench is formed. The conducting material film is formed on the upper surface and in the trench. A photo resist film is formed on the conducting material film located on the upper surface of the underlying film and in the trench. The photo resist film is left in the trench whereas the photo resist film is developed and removed outside the trench. The conducting material film located on the upper surface of the underlying film is etched and removed with the photo resist film left in the trench used as a mask.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: December 31, 2002
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Matsubara, Syuji Nakao
  • Patent number: 6404179
    Abstract: A primary winding of a first insulating transformer for balance-to-unbalance transformation is connected between the central electrode and the outer electrode of an input terminal, and windings of a noise eliminating transformer are provided within balanced lines on the side of a secondary winding of the first insulating transformer. A primary winding of a second insulating transformer for balance-to-unbalance transformation is connected between the central electrode and the outer electrode of an output terminal, and balanced lines on the side of the secondary winding of the second insulating transformer is connected to the noise eliminating transformer. One end of each of the primary windings, which is grounded to the ground line, is connected to the middle print of the secondary winding of each insulating transformer.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: June 11, 2002
    Assignee: Masprodenkoh Kabushikikaisha
    Inventors: Toshihiro Sugiura, Masanari Hiramatsu, Hiroshi Matsubara
  • Patent number: 6402550
    Abstract: A coaxial cable connector for mounting to an end portion of a coaxial cable (20) including a braided conductor (7) and a laminate foil (6) provided inside the braided conductor (7) and having a center conductor. The coaxial cable connector comprises a cylindrical connector main body (30) inserted between the braided conductor (7) and the laminate foil (6), a connective cylinder (2) rotatably supported to a proximal portion of the connector main body (30) so as to be engaged with an outer conductor of a mating connector to be connected, and a clamp ring (3) for fixedly fastening an insertion member (11) of the connector main body (30) after being inserted into the coaxial cable (20). The cylindrical connector main body (30) may also be inserted between the braided conductor (7) and a protective coating (8) portion provided outside the braided conductor (7). Further, the connector main body (30) may comprise slots (41) at the insertion distal portion (11a).
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: June 11, 2002
    Assignee: Maspro Denkoh, Co., LTD
    Inventor: Hiroshi Matsubara
  • Publication number: 20020044402
    Abstract: A primary winding of a first insulating transformer for balance-to-unbalance transformation is connected between the central electrode and the outer electrode of an input terminal, and windings of a noise eliminating transformer are provided within balanced lines on the side of a secondary winding of the first insulating transformer. A primary winding of a second insulating transformer for balance-to-unbalance transformation is connected between the central electrode and the outer electrode of an output terminal, and balanced lines on the side of the secondary winding of the second insulating transformer is connected to the noise eliminating transformer One end of each of the primary windings, which is grounded to the ground line, is connected to the middle point of the secondary winding of each insulating transformer.
    Type: Application
    Filed: December 17, 2001
    Publication date: April 18, 2002
    Inventors: Toshihiro Sugiura, Masanari Hiramatsu, Hiroshi Matsubara
  • Patent number: 6373674
    Abstract: A primary winding of a first insulating transformer for balance-to-unbalance transformation is connected between the central electrode and the outer electrode of an input terminal, and windings of a noise eliminating transformer are provided within balanced lines on the side of a secondary winding of the first insulating transformer. A primary winding of a second insulating transformer for balance-to-unbalance transformation is connected between the central electrode and the outer electrode of an output terminal, and balanced lines on the side of the secondary winding of the second insulating transformer is connected to the noise eliminating transformer. One end of each of the primary windings, which is grounded to the ground line, is connected to the middle point of the secondary winding of each insulating transformer.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: April 16, 2002
    Assignee: Masprodenkoh Kabushikikaisha
    Inventors: Toshihiro Sugiura, Masanari Hiramatsu, Hiroshi Matsubara
  • Publication number: 20010034158
    Abstract: The present invention provides a coaxial cable connector, which can perform a connection excellent in a fixing force without an intrusion or radiation of noise.
    Type: Application
    Filed: April 11, 2001
    Publication date: October 25, 2001
    Applicant: Maspro Denkoh Co., Ltd.
    Inventor: Hiroshi Matsubara
  • Patent number: 6306699
    Abstract: A highly reliable semiconductor device having an underlying film with a trench and a conducting material film formed in the trench, a method of manufacturing the same and a method of forming a resist pattern used therein are obtained. The underlying film having an upper surface and the trench is formed. The conducting material film is formed on the upper surface and in the trench. A photo resist film is formed on the conducting material film located on the upper surface of the underlying film and in the trench. The photo resist film is left in the trench whereas the photo resist film is developed and removed outside the trench. The conducting material film located on the upper surface of the underlying film is etched and removed with the photo resist film left in the trench used as a mask.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: October 23, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Matsubara, Syuji Nakao
  • Publication number: 20010010378
    Abstract: A highly reliable semiconductor device having an underlying film with a trench and a conducting material film formed in the trench, a method of manufacturing the same and a method of forming a resist pattern used therein are obtained The underlying film having an upper surface and the trench is formed. The conducting material film is formed on the upper surface and in the trench. A photo resist film is formed on the conducting material film located on the upper surface of the underlying film and in the trench. The photo resist film is left in the trench whereas the photo resist film is developed and removed outside the trench. The conducting material film located on the upper surface of the underlying film is etched and removed with the photo resist film left in the trench used as a mask.
    Type: Application
    Filed: March 29, 2001
    Publication date: August 2, 2001
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Matsubara, Syuji Nakao
  • Patent number: 6175483
    Abstract: A multi-tap distribution apparatus is encased in an enclosure comprising a boxed shaped housing (2) with one side open and a main body (1) fitted in the opening of the housing. A pair of operating windows (13) are recessed in the main body for mounting and removing thermistors (14). Four connectors (4) are projected into each operating window through insertion holes (13a) in the bottom surface of the window. The connectors are coupled to a current transmission circuit (18) which feeds distribution output terminals (5) with operating currents. Four thermistors can be detachably coupled to the connectors without opening the enclosure. By coupling and detaching each thermistor, operating currents can be passed and blocked to the corresponding distribution output terminal (5). Each operating window (13) is normally closed up with a cover (3) to keep out rain and external noise.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: January 16, 2001
    Assignee: Maspro Denkoh Company, Ltd.
    Inventor: Hiroshi Matsubara
  • Patent number: 6157273
    Abstract: A direction coupler makes it possible to freely select an input terminal and an output terminal thereof. A branch unit (6) containing a branching circuit (6a) is mounted so that the branch unit (6) can be rotated relative to a mother board (5), with a central portion of the branch unit (6) being a fulcrum. Relay terminals (11, 12, 13, 14) of the mother board (5) are provided at positions corresponding to an input terminal (15) and an output terminal (16) of the branch unit (6).
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: December 5, 2000
    Assignee: Maspro Denkoh Co., Ltd.
    Inventor: Hiroshi Matsubara
  • Patent number: 6023603
    Abstract: A satellite signal splitter is proposed which can transmit a received signal of a desired polarized wave with one cable to each terminal side when transmitting to plural terminal sides the received signals from a satellite receiving antenna which emits the received signals of a vertically polarized wave and a horizontally polarized wave.The vertically and horizontally polarized-wave received signals transmitted to input terminals 22V and 22H are split into four by splitting circuits 26V and 26H, respectively. The four split signals are transmitted to switching circuits 28a to 28d. In the switching circuits 28a to 28d, in accordance with a voltage level (11V or 15V) of a polarized-wave switching signal transmitted from terminal units connected to output terminals 24a to 24d, either the vertically or horizontally polarized-wave signal is selected and emitted from the output terminals 24a to 24d.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: February 8, 2000
    Assignee: Masprodenkoh Kabushikikaisha
    Inventor: Hiroshi Matsubara
  • Patent number: 5990759
    Abstract: A directional coupler makes it possible to switch the input terminal and the output terminal thereof in position. A branch unit (5) containing a branching circuit (5a) is mounted so that the branch unit (5) can be rotated relative to a mother board (4), with a central portion of the branch unit (5) being a fulcrum. An input terminal (12) and an output terminal (13) are provided at positions corresponding to relay terminals (10, 11) of the mother board 4.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: November 23, 1999
    Assignee: Maspro Denkoh, Co., Ltd.
    Inventor: Hiroshi Matsubara
  • Patent number: 5990758
    Abstract: A high-frequency signal branching device comprises a main body having an input terminal and an output terminal for connecting trunk cables on an input and an output side, respectively, and a branch body having a branch terminal for connecting a branch cable. This construction allows the number of branch terminals to be increased by replacing the branch body while keeping the main body intact. A branching circuit for branching a high-frequency signal from the trunk cable is provided in the branch body. Accordingly, the branching circuit also can be replaced by replacing the branch body.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: November 23, 1999
    Assignee: Masprodenkoh Kabushikikaisha
    Inventor: Hiroshi Matsubara
  • Patent number: 5877543
    Abstract: A highly reliable assembly structure is provided by surely reducing a stress to be exerted on leads of a TCP device. Part of a soldered portion of outer leads that is located closer to a semiconductor chip of the TCP device is reinforced by a support ring formed on a side of the outer leads opposite from a circuit board, so that a stress to be exerted on the outer leads is dispersed to the leads, the support ring and solder to thereby prevent the possible occurrence of metal fatigue of the leads.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: March 2, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Matsubara, Yasuhiro Sakamoto
  • Patent number: 5726501
    Abstract: A semiconductor device according to the present invention to be mounted on a mounting substrate includes: a connection electrode formed on a surface of the semiconductor device; a solder bump formed on the connection electrode, the solder bump electrically and mechanically connecting the connection electrode with a substrate electrode formed on the mounting substrate; and a solder drawing layer provided on the surface of the semiconductor device in a periphery of the solder bump and having a surface portion composed of a solder-agreeable metal, the solder drawing layer retracting melted solder of the solder bump onto a surface of the solder drawing layer by contact with the melted solder.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 10, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hiroshi Matsubara
  • Patent number: 5555287
    Abstract: An integrated circuit especially suitable for incorporation into the base and handset units of a cordless telephone integrates the speech, control channels, and microcontroller portions of a modem, and the man-machine interface functions of a cordless telephone. The integrated circuit includes one or more of a number of aspects including an in-circuit emulation mechanism, a simplified keypad reporting mechanism, advanced noise suppression mechanisms, a low power emergency mode mechanism, a low cost serial control bus, a port pin interrupt mechanism, advanced power saving mechanisms, spectral measurement test mode means, a novel shut down mechanism, and a pull-up disabling mechanism.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: September 10, 1996
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Dale E. Gulick, Joseph W. Peterson, James E. Bowles, John G. Bartkowiak, Munehiro Yoshikawa, Shin Saito, Hiroshi Matsubara
  • Patent number: 5519405
    Abstract: A direction adjustment indicator for a satellite radio wave receiving antenna comprises a demodulating circuit to demodulate a satellite radio wave received by the antenna, a peak holding circuit always to output a held peak value of the demodulated output of the demodulating circuit, a comparator circuit and a display element. The comparator circuit compares the instantaneous value of the demodulated output and the held peak value, and outputs a signal when both values are equal and another different signal when both values are not equal. The display element gives two different kinds of display in accordance with the signals. While the azimuth angle of the antenna is varied in one direction, a peak value of the demodulated output is held and while the angle is varied in the opposite direction, the optimum azimuth angle is displayed for which the instantaneous value of the demodulated output agrees with the held peak value.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: May 21, 1996
    Assignee: Masprodenkoh Kabushiki Kaisha
    Inventors: Hiroshi Matsubara, Sohei Maruyama
  • Patent number: 5448743
    Abstract: An I/O port interrupt mechanism includes a source register connected to the port for reporting sources of interrupts arising within the port, an interrupt mask register connected to the source register and operable to configure the I/O port for generation of interrupts, and an interrupt controller connected to the output of the source register and operable to hold off interrupts arising within the I/O port.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: September 5, 1995
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Dale E. Gulick, Joe W. Peterson, Munehiro Yoshikawa, Hiroshi Matsubara, Toshihiro Fujita, Kazushige Tsurumi
  • Patent number: 5444046
    Abstract: An amylase inhibitor consisting essentially of a protein constructed of 248 amino acid residues having two subunits, each identified as SEQ ID NO:1, in which a single band is observed at a mobility of 0.26 by polyacrylamide gel electrophoresis. The amylase inhibitor can be extracted from wheat and purified by absorption on a cation exchange resin. It is useful for inhibiting an increase in blood glucose level, controlling insulin secretion, suppressing appetite, and as a food additive. The new amylase inhibitor can be used in combination with a protein composed of two subunits, each identified as SEQ ID NO:2, the total content of both proteins being not less than 20% by weight.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: August 22, 1995
    Assignees: Nisshin Flour Milling Co., Ltd., Nagata Sangyo Co., Ltd.
    Inventors: Toshiyuki Miyazaki, Toshihisa Morimoto, Ryuji Murayama, Hiroshi Matsubara
  • Patent number: 5404459
    Abstract: A serial communication port structure for starting and stopping an internal clock. This internal clock is designed, in operation, to generate a clock output signal to be transmitted to a device external to the system in which the serial communication port is incorporated. By ANDing the clock output signal with a data output signal of predetermined length, the serial communication port can effectively control the passage of time as sensed by the external device.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: April 4, 1995
    Assignees: Advanced Micro Devices, Sony Corporation
    Inventors: Dale E. Gulick, Alan F. Hendrickson, Munehiro Yoshikawa, Hiroshi Matsubara, Kazushige Tsurumi