Patents by Inventor Syuji Aoyama

Syuji Aoyama 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: 7557766
    Abstract: A portable remote controller for a tire status detector, includes a portable casing, a transmission circuit disposed in the casing, a low-pass filter disposed at an output side of the transmission circuit for permitting a signal with a frequency of not more than the first frequency to pass through the low-pass filter, a receiving circuit disposed in the casing, a high-pass filter disposed at an input side of the receiving circuit for permitting a signal with a frequency of not less than the second frequency to pass through the high-pass filter, a ferrite bar antenna housed in the casing and having a ferrite bar wound with an antenna coil, the antenna coil having two terminals, one of which being connected to the ground and the other being connected in common to the low-pass and high-pass filers and a duplexer composed of the low-pass and high-pass filters. The ferrite bar antenna is used both for transmission of the long wave signals and for receipt of the ultra high frequency signals.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: July 7, 2009
    Assignee: Pacific Industrial Co., Ltd.
    Inventors: Shinichi Kawase, Takashi Takeyama, Syuji Aoyama
  • Patent number: 7549360
    Abstract: An obliquely inclined position determining mechanism has an intermediate base rotatable relative to both a support base and a pivotal base of a pivotal support of a cutting device. A fixing device is operable to releasably fix the intermediate base in position relative to the support base or the pivotal base. An adjustable screw is operable to accurately determine the rotational position of the intermediate base relative to the pivotal base or the support base at least when the saw unit has been pivoted to a target obliquely inclined position.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: June 23, 2009
    Assignee: Makita Corporation
    Inventor: Syuji Aoyama
  • Publication number: 20090079652
    Abstract: A portable remote controller for a tire status detector, includes a portable casing, a transmission circuit disposed in the casing, a low-pass filter disposed at an output side of the transmission circuit for permitting a signal with a frequency of not more than the first frequency to pass through the low-pass filter, a receiving circuit disposed in the casing, a high-pass filter disposed at an input side of the receiving circuit for permitting a signal with a frequency of not less than the second frequency to pass through the high-pass filter, a ferrite bar antenna housed in the casing and having a ferrite bar wound with an antenna coil, the antenna coil having two terminals, one of which being connected to the ground and the other being connected in common to the low-pass and high-pass filers and a duplexer composed of the low-pass and high-pass filters. The ferrite bar antenna is used both for transmission of the long wave signals and for receipt of the ultra high frequency signals.
    Type: Application
    Filed: March 3, 2008
    Publication date: March 26, 2009
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Shinichi Kawase, Takashi Takeyama, Syuji Aoyama
  • Publication number: 20090071306
    Abstract: A cutting machine includes a main body in which a rotary blade is included, a base over which a workpiece is to be placed, and a guide fence mountable to the base. The main body is provided above the base in such a manner that the main body is movable upward and downward, and a longitudinal direction of the guide fence is perpendicular to the rotary blade as viewed from top when the guide fence is mounted to the base. The guide fence provides a guide surface that extends in the longitudinal direction of the guide fence and is configured to be rendered perpendicular to a top face of the base when the guide fence is mounted to the base. The guide fence includes a stopper that is configured to project from the guide surface, to be movable upward and downward, and to be fixed at any level.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 19, 2009
    Applicant: MAKITA CORPORATION
    Inventor: Syuji Aoyama
  • Publication number: 20080152038
    Abstract: A data communication system includes a terminal identification information adding unit generating a unit carrier wave including a predetermined plurality of periods of carrier waves and arranging the unit carrier wave in arrangement patterns differing at every transmission terminal to generate a unit carrier row signal shorter than one bit of the digital transmission data, a transmission timing determination unit detecting a binary inversion timing of the digital transmission data and causing the terminal identification information adding unit to transmit the unit carrier row signal every time the binary is inverted, a reception timing distinguishing unit generating a reception timing signal in synchronization with reception of the unit carrier row signal and collecting the reception timing signal of the unit carrier row signal of the same type, and a digital data restoring unit inverting the binary according to the collected reception timing signal, restoring the digital transmission data.
    Type: Application
    Filed: April 16, 2007
    Publication date: June 26, 2008
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Shinichi Kawase, Youichi Okubo, Yasuhisa Tsujita, Syuji Aoyama
  • Publication number: 20070227240
    Abstract: A data communication system installed in an electric machine includes a transmission terminal and a reception terminal both mounted on the electric machine, a transmission-side opposed conductive member disposed on the transmission terminal, a transmission circuit for applying voltage between the transmission-side conductive member and the conductive body, thereby changing electric field generated on the entire surface of the conductive body, the voltage being changed according to information to be transmitted, a reception-side opposed conductive member provided on the reception terminal, thereby being capable of generating potential difference according to the electric field between the conductive body and the reception-side opposed conductive member, and a reception circuit for receiving the information based on a change in the potential difference between the conductive body and the reception-side opposed conductive member.
    Type: Application
    Filed: June 20, 2006
    Publication date: October 4, 2007
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Shinichi Kawase, Youichi Okubo, Yasuhisa Tsujita, Syuji Aoyama
  • Patent number: 7251993
    Abstract: A tire information communication system mounted on a vehicle includes a tire-pressure detector mounted on a tire wheel for detecting a pressure of a tire and transmitting a result of detection, a tire monitor mounted on a vehicle body for obtaining information about tire pressure from the tire-pressure detector, a tire transmission circuit provided in the tire-pressure detector for applying AC voltage containing information about tire pressure between the tire wheel and an annular conductor of the tire so that a radio wave is radiated from the annular conductor, a vehicle ground isolation provided in the tire monitor so as to receive the radio wave from the annular conductor thereby to be capable of generating AC voltage between the vehicle ground and itself, and a body-side receiving circuit provided in the tire monitor and connected to the vehicle ground and the vehicle ground isolation respectively for obtaining the information about the tire pressure from the AC voltage generated between the vehicle groun
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: August 7, 2007
    Assignee: Pacific Industrial Co., Ltd.
    Inventors: Youichi Okubo, Shinichi Kawase, Yasuhisa Tsujita, Syuji Aoyama
  • Publication number: 20070144248
    Abstract: A tire information communication system mounted on a vehicle includes a tire-pressure detector mounted on a tire wheel for detecting a pressure of a tire and transmitting a result of detection, a tire monitor mounted on a vehicle body for obtaining information about tire pressure from the tire-pressure detector, a tire transmission circuit provided in the tire-pressure detector for applying AC voltage containing information about tire pressure between the tire wheel and an annular conductor of the tire so that a radio wave is radiated from the annular conductor, a vehicle ground isolation provided in the tire monitor so as to receive the radio wave from the annular conductor thereby to be capable of generating AC voltage between the vehicle ground and itself, and a body-side receiving circuit provided in the tire monitor and connected to the vehicle ground and the vehicle ground isolation respectively for obtaining the information about the tire pressure from the AC voltage generated between the vehicle groun
    Type: Application
    Filed: June 7, 2006
    Publication date: June 28, 2007
    Applicant: PACIFIC INDUSTRIAL CO., LTD.
    Inventors: Youichi Okubo, Shinichi Kawase, Yasuhisa Tsujita, Syuji Aoyama
  • Publication number: 20060185484
    Abstract: A dust-collecting device for collecting cutting chips produced by a cutting device has a separator for separating the cutting chips from the carrier air by utilizing the force of gravity upon the cutting chips. A dust container collects the cutting chips separated by the separator. The separator includes a separator body having a cutting chip discharge pipe and an air discharge pipe. After separation the carrier air is discharged upward from the separator body via the air discharge pipe. The separated cutting chips are discharge downward from the separator body via the cutting chip discharge pipe. The dust container is connected to the cutting chip discharge pipe.
    Type: Application
    Filed: July 14, 2005
    Publication date: August 24, 2006
    Applicant: MAKITA CORPORATION
    Inventors: Katsuhiko Sasaki, Masahiko Ono, Taiju Tsuboi, Manabu Tokunaga, Shinji Hirabayashi, Toshiyuki Kani, Syuji Aoyama
  • Publication number: 20060027067
    Abstract: An obliquely inclined position determining mechanism has an intermediate base rotatable relative to both a support base and a pivotal base of a pivotal support of a cutting device. A fixing device is operable to releasably fix the intermediate base in position relative to the support base or the pivotal base. An adjustable screw is operable to accurately determine the rotational position of the intermediate base relative to the pivotal base or the support base at least when the saw unit has been pivoted to a target obliquely inclined position.
    Type: Application
    Filed: August 1, 2005
    Publication date: February 9, 2006
    Applicant: MAKITA CORPORATION
    Inventor: Syuji Aoyama
  • Patent number: 5517685
    Abstract: The PLL circuit provides both the advantages of analog phase control, in which a good C/N ratio can be realized, and the advantages of digital phase control, in which broad-band lock can be performed. A multi-channel FM receiving method and apparatus are able to utilize the PLL circuit to reduce the influence of the leakage occurring among input signals and suppress image disturbance.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: May 14, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Syuji Aoyama, Takao Funahashi, Kiyoshi Kubo, Yasuhito Okawa, Takeshi Sato, Hiroshi Takahashi