Patents by Inventor Hideaki Kawai

Hideaki Kawai 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: 20030215265
    Abstract: An image forming apparatus includes a drive source which is detachably mountable to a main body, wherein the main body includes a gear which can be driven rotatable by the drive source and which includes a coupling protrusion on a radial line. A process cartridge includes a photosensitive drum, a process unit which acts upon the photosensitive drum, and a coupling hole which is provided at an end part of a radial direction of the photosensitive drum. The photosensitive drum set in the main body rotates by receiving a drive force from the drive source via the coupling protrusion and the coupling hole when a cover member of the main body is closed, and the coupling protrusion and the coupling hole are fit together.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 20, 2003
    Applicant: MURATA KIKAI KABUSHIKI KAISHA
    Inventor: Hideaki Kawai
  • Publication number: 20020062845
    Abstract: There is provided a semiconductor manufacturing system and a method for cleaning the same. Silicon oxide adhering to Elements, which constitute the system, is removed by a cleaning gas containing an HF gas and a water vapor together with by heating the elements.
    Type: Application
    Filed: November 15, 2001
    Publication date: May 30, 2002
    Applicant: CANON SALES CO., LTD.
    Inventors: Hideaki Kawai, Noboru Tokumasu, Takayoshi Azumi
  • Patent number: 6384940
    Abstract: The present invention relates to a facsimile device utilizing an improved process unit for an electrophotographic image recording device. The process unit includes a development unit and a photosensitive (drum) unit. These two units can be integrally engaged with each other and the combined two units is as a whole removable from/attached to the facsimile device when maintenance is required due to jammed paper or the like. When one of the units is to be replaced with a new unit because of exhaustion or the like, the combined two units can be separated and subject to maintenance (replacement). In the present invention, this process unit is accommodated in a main body frame of a facsimile having an image recording part such that the unit can be removed from/attached to the main body frame in the vertical direction. A scan part frame having a continuous document scan part and a flat head bed scanner is rotatably mounted on the main body frame.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: May 7, 2002
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Hideaki Kawai, Masahiro Fujimaru, Mitsuhiko Miyaoka, Yoshihiko Ohara
  • Publication number: 20020044305
    Abstract: The present invention relates to a facsimile device utilizing an improved process unit for an electrophotographic image recording device. The process unit includes a development unit and a photosensitive (drum) unit. These two units can be integrally engaged with each other and the combined two units is as a whole removable from/attached to the facsimile device when maintenance is required due to jammed paper or the like. When one of the units is to be replaced with a new unit because of exhaustion or the like, the combined two units can be separated and subject to maintenance (replacement). In the present invention, this process unit is accommodated in a main body frame of a facsimile having an image recording part such that the unit can be removed from/attached to the main body frame in the vertical direction. A scan part frame having a continuous document scan part and a flat head bed scanner is rotatably mounted on the main body frame.
    Type: Application
    Filed: April 15, 1998
    Publication date: April 18, 2002
    Inventors: HIDEAKI KAWAI, MASAHIRO FUJIMARU, MITSUHIKO MIYAOKA, YOSHIHIKO OHARA
  • Publication number: 20020036511
    Abstract: There is provided a printed circuit board which can prevent air leakage from through holes, can eliminate a possibility of the occurrence of a short of patterns caused by soldering, and can be manufactured at low cost in a short time while solder does not interfere with a device fixing mechanism part, and another object of the invention is to provide a method of manufacturing the printed circuit board.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 28, 2002
    Inventor: Hideaki Kawai
  • Patent number: 6166992
    Abstract: A semiconductor device includes a one-shot pulse generating circuit that generates a one-shot pulse having a predetermined pulse width at a rise or fall timing of a first clock signal, a cycle time measuring circuit that measures a cycle-time of the first clock signal from the one-shot pulse output from the one-shot pulse generating circuit, an internal clock generating circuit that generates a second clock signal based on the cycle time measured by the cycle time measuring circuit and the one-shot pulse output from the one-shot pulse generating circuit. The second clock signal has a cycle time identical to the first clock signal and has a rise or fall timing which is advanced by a specific time than that of the first clock signal, and the specific time is obtained by subtracting the cycle time of the first clock signal from a predetermined time, and a data output circuit that outputs data after a predetermined delay time from the rise or fall timing of the second clock signal.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: December 26, 2000
    Assignee: Fujitsu Limited
    Inventors: Yoshihiro Takemae, Masao Taguchi, Yukinori Kodama, Makoto Yanagisawa, Takaaki Suzuki, Junji Ogawa, Atsushi Hatakeyama, Hirohiko Mochizuki, Hideaki Kawai
  • Patent number: 6047141
    Abstract: An image recording machine (8) having a remaining toner detection unit arranged inside a main body of a developer (41). Toner (40) is housed in the developer main body. The image recording machine (8) also includes a scraper (57) which cleans toner (40) out of a recess (56a) of the remaining toner detection unit as it is rotated integrally with an agitator. A supply member (47) for supplying stored toner (40) to the recess (56a) of the remaining toner detection unit rotates with the scraper (57) and is arranged at a 90.degree. angle downstream from the scraper (57) relative to their direction of rotation. The supply member (47) is formed as a flexible member.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: April 4, 2000
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Mitsuhiko Miyaoka, Hideaki Kawai
  • Patent number: 6029019
    Abstract: An image recording device for forming a toner image on a photosensitive drum using an electrophotographic technique. The image recording device includes opposed metallic frames each having a notch for receiving and supporting an end of a metallic shaft of the photosensitive drum so that the photosensitive drum is supported between the metallic frames. A plate spring is located in the vicinity of one of the metallic frames such that the plate spring is forced to contact the photosensitive drum shaft when the photosensitive drum is supported between the metallic frames. The metallic frames have a fixed relation relative to a main frame of the image recording device. A power source is connected to the plate spring and the associated metallic frame is earthed. Thus, a current flows from the power source to the plate spring, the drum shaft and the associated metallic frame in turn when the photosensitive drum is supported on the metallic frames.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: February 22, 2000
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Hideaki Kawai
  • Patent number: 6009039
    Abstract: A semiconductor device includes a one-shot pulse generating circuit that generates a one-shot pulse having a predetermined pulse width at a rise or fall timing of a first clock signal, a cycle time measuring circuit that measures a cycle time of the first clock signal from the one-shot pulse output from the one-shot pulse generating circuit, an internal clock generating circuit that generates a second clock signal based on the cycle time measured by the cycle time measuring circuit and the one-shot pulse output from the one-shot pulse generating circuit. The second clock signal has a cycle time identical to the first clock signal and has a rise or fall timing which is advanced by a specific time than that of the first clock signal, and the specific time is obtained by subtracting the cycle time of the first clock signal from a predetermined time, and a data output circuit that outputs data after a predetermined delay time from the rise or fall timing of the second clock signal.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: December 28, 1999
    Assignee: Fujitsu Limited
    Inventors: Yoshihiro Takemae, Masao Taguchi, Yukinori Kodama, Makoto Yanagisawa, Takaaki Suzuki, Junji Ogawa, Atsushi Hatakeyama, Hirohiko Mochizuki, Hideaki Kawai
  • Patent number: 5767712
    Abstract: A semiconductor device includes a one-shot pulse generating circuit that generates a one-shot pulse having a predetermined pulse width at a rise or fall timing of a first clock signal, a cycle time measuring circuit that measures a cycle time of the first clock signal from the one-shot pulse output from the one-shot pulse generating circuit, an internal clock generating circuit that generates a second clock signal based on the cycle time measured by the cycle time measuring circuit and the one-shot pulse output from the one-shot pulse generating circuit. The second clock signal has a cycle time identical to the first clock signal and has rise or fall timing which is advanced by a specific time than that of the first clock signal, and the specific time is obtained by subtracting the cycle time of the first clock signal from a predetermined time, and a data output circuit that outputs data after a predetermined delay time from the rise or fall timing of the second clock signal.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: June 16, 1998
    Assignee: Fujitsu Limited
    Inventors: Yoshihiro Takemae, Masao Taguchi, Yukinori Kodama, Makoto Yanagisawa, Takaaki Suzuki, Junji Ogawa, Atsushi Hatakeyama, Hirohiko Mochizuki, Hideaki Kawai
  • Patent number: 5731720
    Abstract: A semiconductor integrated circuit device is intended to prevent generation of an unnecessary leak current and hence to reduce power consumption.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: March 24, 1998
    Assignees: Fujitsu Limited, Fujitsu VLSI Limited, Kyushu Fujitsu Electronics Limited
    Inventors: Takaaki Suzuki, Makoto Niimi, Hideaki Kawai, Masato Kaida
  • Patent number: 4662243
    Abstract: A power transmission apparatus with a two-phase type torque converter having a first stator capable of being selectively coupled to an output shaft, a fixed second stator, a brake which may be applied to fix the first stator, and a clutch for selectively connecting the first stator and the output shaft when the brake is in a released state.
    Type: Grant
    Filed: February 13, 1985
    Date of Patent: May 5, 1987
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Hideaki Kawai, Kiyoharu Murakami