Patents by Inventor Shinichi Takeuchi
Shinichi Takeuchi 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).
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Publication number: 20070077003Abstract: A wavelength selective optical switch of the present invention separates a WDM light emitted from an input port of an input and output optical system, according to wavelengths, by a diffraction grating, and thereafter, condenses the lights of respective wavelengths on MEMS mirrors respectively corresponding to the respective wavelengths, in a mirror array, to reflect them by a condenser optical system, to thereby switch optical paths for the respective lights. The condenser optical system is configured by combining a plurality of lenses whose focal distances are different from each other, and positions in an optical axis direction of the lenses are adjustable by a slide mechanism. Thus, despite an error in the focal distances of the condenser lenses, in a mounting angle of a spectral element or the like, a beam pitch at the condensing positions of the lights of respective wavelengths can be coincident with a mirror pitch in the mirror array.Type: ApplicationFiled: December 30, 2005Publication date: April 5, 2007Applicant: FUJITSU LIMITEDInventors: Hirofumi Aota, Kohei Shibata, Tamotsu Akashi, Shinji Yamashita, Tsuyoshi Yamamoto, Shinichi Takeuchi, Yoshinobu Kubota, Nobuhiro Fukushima, Hiroyuki Furukawa, Toshiya Kishida
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Publication number: 20070041682Abstract: The micro mirror unit includes a substrate, on which are provided a micro mirror reflecting light, a torsion bar supporting the micro mirror, a frame rotatably supporting the torsion bar, and a deformative supporting part which deforms itself to lift the frame away from the substrate and supports the frame in such a lifted condition. This arrangement makes it possible to realize an increased space between the micro mirror and the substrate, thereby realizing an enlarged mirror tilt angel, without increasing the thickness of the sacrifice layer.Type: ApplicationFiled: September 28, 2004Publication date: February 22, 2007Inventors: Shinichi Takeuchi, Tsuyoshi Yamamoto
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Publication number: 20050220394Abstract: A micromirror element is configured such that a mirror body is arranged via a support on a wiring substrate on which a pair of mirror drive electrodes and a light detection unit are arranged. A mirror is constituted of a mirror frame and a movable mirror swayably supported by the mirror frame. A light transmitting hole is formed at the center of the movable mirror. Light passing through the light transmitting hole is detected by the light detection device.Type: ApplicationFiled: September 30, 2004Publication date: October 6, 2005Applicant: FUJITSU LIMITEDInventors: Tsuyoshi Yamamoto, Shinichi Takeuchi
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Patent number: 6771426Abstract: In an input-output optical system of spatially optical coupled type, a spacer is provided in at least one of input and output optical systems and interposed between a lens array block and a fiber block without blocking an optical path for ensuring a distance corresponding to a focal distance of collimating lenses. As a result, highly-accurate, highly-stable alignment of an optical axis can be readily realized.Type: GrantFiled: January 15, 2003Date of Patent: August 3, 2004Assignee: Fujitsu LimitedInventors: Tsuyoshi Yamamoto, Tamotsu Akashi, Shinichi Takeuchi
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Publication number: 20030231831Abstract: In an input-output optical system of spatially optical coupled type, a spacer is provided in at least one of input and output optical systems and interposed between a lens array block and a fiber block without blocking an optical path for ensuring a distance corresponding to a focal distance of collimating lenses. As a result, highly-accurate, highly-stable alignment of an optical axis can be readily realized.Type: ApplicationFiled: January 15, 2003Publication date: December 18, 2003Applicant: Fujitsu LimitedInventors: Tsuyoshi Yamamoto, Tamotsu Akashi, Shinichi Takeuchi
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Patent number: 6612215Abstract: A cutting machine for cutting a belt-shaped sheet into a given shape includes a sheet feeder, a Y-axis shaft, a carriage, a sub-shaft, two connecting frames, and an elevating device. The sheet feeder moves the belt-shaped sheet in the X-axis direction. The Y-axis shaft is disposed in the Y-axis direction above the cutting sheet. The carriage mounts a cutter on a leading end thereof and is slidably disposed on the Y-axis shaft. The sub-shaft is disposed parallel to the Y-axis shaft and penetrates the carriage on the leading end side of the carriage. The connecting frames connects and fixes the Y-axis shaft and the sub-shaft to each other. The elevating device moves up and down the sub-shaft to move the cutter up and down in the Z-axis direction with respect to the cutting sheet.Type: GrantFiled: June 8, 2001Date of Patent: September 2, 2003Assignee: Max Co., Ltd.Inventor: Shinichi Takeuchi
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Publication number: 20010049989Abstract: A cutting machine for cutting a belt-shaped sheet into a given shape includes a sheet feeder, a Y-axis shaft, a carriage, a sub-shaft, two connecting frames, and an elevating device. The sheet feeder moves the belt-shaped sheet in the X-axis direction. The Y-axis shaft is disposed in the Y-axis direction above the cutting sheet. The carriage mounts a cutter on a leading end thereof and is slidably disposed on the Y-axis shaft. The sub-shaft is disposed parallel to the Y-axis shaft and penetrates the carriage on the leading end side of the carriage. The connecting frames connects and fixes the Y-axis shaft and the sub-shaft to each other. The elevating device moves up and down the sub-shaft to move the cutter up and down in the Z-axis direction with respect to the cutting sheet.Type: ApplicationFiled: June 8, 2001Publication date: December 13, 2001Applicant: Max Co. Ltd.Inventor: Shinichi Takeuchi
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Patent number: 5996269Abstract: The present disclosure concerns a fishing rod which reduces resistance between a fishline and a tubular member of the fishing, thereby allowing the fishline to be transported through the tubular member smoothly. The tubular member incorporates a diffusion property on its interior surface for spreading waterdrops into a thin film of water.Type: GrantFiled: February 2, 1995Date of Patent: December 7, 1999Assignee: Daiwa Seiko, Inc.Inventors: Nobuhiro Takata, Shinichi Takeuchi, Masaru Akiba
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Patent number: 5786535Abstract: An apparatus for detecting flaws using supersonic waves measures a thickness of a test object or a position of a cavity inside the test object by employing a pair of ultrasonic probes. By, changing a relative position of one ultrasonic probe to that of the other ultrasonic probe, a plurality of waveform data of ultrasonic reception signals is acquired. Each of the acquired waveform data is added together. Because a surface wave component of each waveform data has a shifted phase due to a difference in arrival times, a level of the surface wave component is offset and thus minimized through addition of the waveform data.Type: GrantFiled: November 15, 1996Date of Patent: July 28, 1998Assignee: Tokimec Inc.Inventors: Shinichi Takeuchi, Ryo Ishiyama, Yutaka Kashiwase, Kinuko Kato, Ryohei Motegi
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Patent number: 5602336Abstract: An apparatus for detecting flaws using supersonic waves measures a thickness of a test object or a position of a cavity inside the test object by employing pair of ultrasonic probes. By changing a relative position of one ultrasonic probe to that of the other ultrasonic probe, a plurality of waveform data of ultrasonic reception signals is acquired. Each acquired waveform data is added per corresponding unit of time. Since a surface wave component of each waveform data has a shifted phase due to the difference in arrival time, a level of the surface wave component is offset and thus minimized through addition of the waveform data.Type: GrantFiled: November 8, 1994Date of Patent: February 11, 1997Assignee: Tokimec Inc.Inventors: Shinichi Takeuchi, Ryo Ishiyama, Yutaka Kashiwase, Kinuko Kato, Ryohei Motegi
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Patent number: 5170667Abstract: An ultrasonic wave is emitted from an ultrasonic wave transducer for transmission to polymeric materials and received by an ultrasonic wave transducer for reception arranged at a predetermined distance away from the transducer for transmission. A propagation time of the ultrasonic wave and the level of the reception wave are measured during the process to heat or cool the polymeric materials. A state of the polymeric materials is discriminated on the basis of a characteristic curve which is determined by the propagation time and the reception wave level of the ultrasonic wave. In the case of measuring an asphalt paved road, when shoulder characteristics appear on the characteristic curve which is determined by the propagation time of the ultrasonic wave and the reception wave level, it is determined that a solid state in which a traffic lane can be opened was obtained.Type: GrantFiled: December 4, 1990Date of Patent: December 15, 1992Assignee: Tokimec, Inc.Inventors: Shinichi Takeuchi, Ryohei Motegi
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Patent number: 4930358Abstract: The present invention relates to a method of and an apparatus for measuring flow velocity by using ultrasonic waves. Sound velocities of wedge portions constituting ultrasonic transducers provided at the upstream and the downstream sides of a piping, respectively, are measured, and the ultrasonic wave is oscillated from the upstream side to the downstream side and from the downstream side to the upstream side, respectively, and propagated in a fluid in the piping and respective times from the oscillating to receiving are measured. These measured values are substituted into a predetermined function and calculated, to thereby search the flow velocity of the fluid in the piping.Type: GrantFiled: March 21, 1988Date of Patent: June 5, 1990Assignee: Tokyo Keiki Co., Ltd.Inventors: Ryohei Motegi, Shinichi Takeuchi, Toshio Sato
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Patent number: 4846496Abstract: Wheel suspension units each having fluid spring chambers are arranged in a vehicle suspension apparatus. A roll control quantity determined in accordance with the relationship between a vehicle velocity and a steering angular velocity, i.e., inlet solenoid valves and exhaust solenoid valves, are controlled in accordance with a solenoid ON/OFF time, thereby controlling the roll of a vehicle.Type: GrantFiled: January 7, 1988Date of Patent: July 11, 1989Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Tadao Tanaka, Sunao Chikamori, Mitsuhiko Harara, Shinichi Takeuchi, Masanaga Suzumura, Minoru Tatemoto, Naotake Kumagai, Hiroki Abe
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Patent number: 4730843Abstract: Wheel suspension units each having fluid spring chambers are arranged in a vehicle suspension apparatus. A roll control quantity determined in accordance with the relationship between a vehicle velocity and a steering angular velocity, i.e., inlet solenoid valves and exhaust solenoid valves, are controlled in accordance with a solenoid ON/OFF time, thereby controlling the roll of a vehicle.Type: GrantFiled: January 24, 1985Date of Patent: March 15, 1988Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Tadao Tanaka, Sunao Chikamori, Mitsuhiko Harara, Shinichi Takeuchi, Masanaga Suzumura, Minoru Tatemoto, Naotake Kumagai, Hiroki Abe
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Patent number: 4625992Abstract: A suspension apparatus has suspension units which have individual fluid spring chambers and are arranged on the wheels. When a detected negative acceleration (deceleration) exceeds a reference negative deceleration, front wheel fluid supply valves are opened for a control time T to supply a predetermined amount of fluid to the front wheel spring chambers and rear wheel fluid extent valves are opened for the control time T to exhaust a predetermined amount of fluid from the rear wheel fluid spring chambers, thereby decreasing nose dive at the time of deceleration.Type: GrantFiled: January 24, 1985Date of Patent: December 2, 1986Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Tadao Tanaka, Sunao Chikamori, Mitsuhiko Harara, Shinichi Takeuchi, Yasutaka Taniguchi, Masanaga Suzumura, Minoru Tatemoto, Naotake Kumagai, Hiroki Abe
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Patent number: 4625994Abstract: A suspension apparatus has suspension units mounted on wheels and each unit has a fluid spring chamber. Fluid is supplied to contracted fluid spring chambers and is exhausted from elongated fluid spring chambers to control the change in position of the vehicle. In the position control mode, a large-diameter path is selected to supply or exhaust a large amount of compressed fluid. In the height control mode, a small-diameter path is selected to supply or exhaust a small amount of compressed fluid. The required amounts of compressed fluid can be supplied to the fluid spring chambers in both the position and height control modes.Type: GrantFiled: January 24, 1985Date of Patent: December 2, 1986Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Tadao Tanaka, Sunao Chikamori, Mitsuhiko Harara, Shinichi Takeuchi, Masanaga Suzumura, Minoru Tatemoto, Naotake Kumagai, Hiroki Abe
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Patent number: 4624476Abstract: Wheel suspension units each having fluid spring chambers are arranged in a vehicle suspension apparatus. A roll control quantity, determined in accordance with the relationship between a vehicle velocity and a steering angle, i.e., inlet solenoid valves and exhaust solenoid valves are controlled in accordance with solenoid ON/OFF time, thereby controlling rolling of the vehicle.Type: GrantFiled: January 24, 1985Date of Patent: November 25, 1986Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Tadao Tanaka, Sunao Chikamori, Mitsuhiko Harara, Shinichi Takeuchi, Masanaga Suzumura, Minoru Tatemoto, Naotake Kumagai, Hiroki Abe