Patents by Inventor Nobuaki Fujimura
Nobuaki Fujimura 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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Patent number: 7466359Abstract: An image-pickup apparatus for capturing an object includes a distance calculating unit for measuring a phase difference (time difference) from the emission of light from a light emitting unit to the reception of reflected light by a light receiving unit for each unit composed of a predetermined number of adjacent pixels of the object to calculate a distance from the image-pickup apparatus to each corresponding pixel unit of the object, and an image processing unit for corresponding the distance calculated in units of the predetermined number of pixels to the image captured by the light receiving unit. The image processing unit supplies a display unit with only pixels corresponding to a predetermined range in the image generated by the distance calculating unit to display the pixels in units of the predetermined number of pixels on the display unit.Type: GrantFiled: March 24, 2005Date of Patent: December 16, 2008Assignee: Hitachi Kokusai Electric Inc.Inventors: Kazuhito Enomoto, Nobuaki Fujimura
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Patent number: 7460156Abstract: A method and apparatus for transmitting a signal between a television camera and a video apparatus. When time-division multiplexing parallel image signals and transmitting them as a serial signal from the camera side to the video apparatus side, a control signal destined from the camera to the video apparatus is also time-division multiplexed. Furthermore, a plurality of kinds of trigger signals may be time-division multiplexed into one serial signal and transmitted from the video apparatus to the camera.Type: GrantFiled: March 17, 2004Date of Patent: December 2, 2008Assignee: Hitachi, Ltd.Inventors: Kazuhito Enomoto, Nobuaki Fujimura, Kazuhisa Yoshihara, Katsumasa Ueno
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Patent number: 7175348Abstract: A slider is formed by a metallic main body, a synthetic resin-made frame, and a pair of end caps. The frame is detachably fitted to outer sides of the main body. Ball rolling grooves are provided in the main body. Return paths and inside grooves of a direction changing path are provided in the frame. An outside groove of the direction changing path are provided in each end cap. A paste-like filler is applied to a boundary portion between the main body and the frame and a boundary portion between the frame and the end cap, and is allowed to cure.Type: GrantFiled: September 6, 2005Date of Patent: February 13, 2007Assignee: NSK, Ltd.Inventors: Nobuaki Fujimura, Toshio Yoshida
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Publication number: 20060072863Abstract: A linear guide device having an appropriate length of a loaded rolling element rolling groove capable of stably suppressing rolling element passage vibrations is provided.Type: ApplicationFiled: November 30, 2004Publication date: April 6, 2006Applicants: NSK LTD., NSK PRECISION CO., LTD.Inventor: Nobuaki Fujimura
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Publication number: 20060029307Abstract: A slider is formed by a metallic main body, a synthetic resin-made frame, and a pair of end caps. The frame is detachably fitted to outer sides of the main body. Ball rolling grooves are provided in the main body. Return paths and inside grooves of a direction changing path are provided in the frame. An outside groove of the direction changing path are provided in each end cap. A paste-like filler is applied to a boundary portion between the main body and the frame and a boundary portion between the frame and the end cap, and is allowed to cure.Type: ApplicationFiled: September 6, 2005Publication date: February 9, 2006Inventors: Nobuaki Fujimura, Toshio Yoshida
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Patent number: 6957916Abstract: A slider is formed by a metallic main body, a synthetic resin-made frame, and a pair of end caps. The frame is detachably fitted to outer sides of the main body. Ball rolling grooves are provided in the main body. Return paths and inside grooves of a direction changing path are provided in the frame. An outside groove of the direction changing path are provided in each end cap. A paste-like filler is applied to a boundary portion between the main body and the frame and a boundary portion between the frame and the end cap, and is allowed to cure.Type: GrantFiled: October 10, 2003Date of Patent: October 25, 2005Assignee: NSK, Ltd.Inventor: Nobuaki Fujimura
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Publication number: 20050220450Abstract: An image-pickup apparatus for capturing an object includes a distance calculating unit for measuring a phase difference (time difference) from the emission of light from a light emitting unit to the reception of reflected light by a light receiving unit for each unit composed of a predetermined number of adjacent pixels of the object to calculate a distance from the image-pickup apparatus to each corresponding pixel unit of the object, and an image processing unit for corresponding the distance calculated in units of the predetermined number of pixels to the image captured by the light receiving unit. The image processing unit supplies a display unit with only pixels corresponding to a predetermined range in the image generated by the distance calculating unit to display the pixels in units of the predetermined number of pixels on the display unit.Type: ApplicationFiled: March 24, 2005Publication date: October 6, 2005Inventors: Kazuhito Enomoto, Nobuaki Fujimura
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Patent number: 6900838Abstract: An image signal processing method and an image signal processing apparatus for processing the color component signal obtained from a solid-state image pickup device including an arrangement of a plurality of photoelectric elements and a color filter arranged in the light receiving section of each pixel corresponding to the photoelectric element, an image signal generating apparatus and a computer program product for the image signal processing method. A color component signal is fetched from a designated pixel corresponding to the photoelectric element having a filter that can transmit the green light on a line of the solid-state image pickup device. A color component signal is also fetched from a pixel corresponding to the photoelectric element having a filter for transmitting at least the green light on another line, which pixel is located in the neighborhood of the designated pixel.Type: GrantFiled: September 28, 2000Date of Patent: May 31, 2005Assignee: Hitachi Denshi Kabushiki KaishaInventors: Nobuaki Fujimura, Makoto Suzuki, Katsumasa Ueno
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Patent number: 6869220Abstract: Disclosed is a linear guide device in which a rate of change expressed as “Dmax?Dmin”, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2?dx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.Type: GrantFiled: June 6, 2003Date of Patent: March 22, 2005Assignee: NSK Ltd.Inventors: Hiroki Yamaguchi, Ryoichi Sato, Shinichi Kasuga, Kenji Kano, Soichiro Kato, Nobuaki Fujimura
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Publication number: 20040183916Abstract: A method and apparatus for transmitting a signal between a television camera and a video apparatus. When time-division multiplexing parallel image signals and transmitting them as a serial signal from the camera side to the video apparatus side, a control signal destined from the camera to the video apparatus is also time-division multiplexed. Furthermore, a plurality of kinds of trigger signals may be time-division multiplexed into one serial signal and transmitted from the video apparatus to the camera.Type: ApplicationFiled: March 17, 2004Publication date: September 23, 2004Inventors: Kazuhito Enomoto, Nobuaki Fujimura, Kazuhisa Yoshihara, Katsumasa Ueno
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Publication number: 20040076349Abstract: A slider is formed by a metallic main body, a synthetic resin-made frame, and a pair of end caps. The frame is detachably fitted to outer sides of the main body. Ball rolling grooves are provided in the main body. Return paths and inside grooves of a direction changing path are provided in the frame. An outside groove of the direction changing path are provided in each end cap. A paste-like filler is applied to a boundary portion between the main body and the frame and a boundary portion between the frame and the end cap, and is allowed to cure.Type: ApplicationFiled: October 10, 2003Publication date: April 22, 2004Applicant: NSK LTD.Inventor: Nobuaki Fujimura
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Patent number: 6655839Abstract: A linear guide device in which a rate of change expressed as “Dmax−Dmin”, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2−dx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.Type: GrantFiled: July 5, 2001Date of Patent: December 2, 2003Assignee: NSK Ltd.Inventors: Hiroki Yamaguchi, Ryoichi Sato, Shinichi Kasuga, Kenji Kano, Soichiro Kato, Nobuaki Fujimura
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Publication number: 20030198409Abstract: Disclosed is a linear guide device in which a rate of change expressed as “Dmax−Dmin”, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2−dx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.Type: ApplicationFiled: June 6, 2003Publication date: October 23, 2003Applicant: NSK LTD.Inventors: Hiroki Yamaguchi, Ryoichi Sato, Shinichi Kasuga, Kenji Kano, Soichiro Kato, Nobuaki Fujimura
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Publication number: 20020025087Abstract: Disclosed is a linear guide device in which a rate of change expressed as “Dmax−Dmin”, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2−dx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.Type: ApplicationFiled: July 5, 2001Publication date: February 28, 2002Applicant: NSK LTD.Inventors: Hiroki Yamaguchi, Ryoichi Sato, Shinichi Kasuga, Kenji Kano, Soichiro Kato, Nobuaki Fujimura
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Patent number: 5245291Abstract: Method and apparatus for detecting a length of a cable connecting information equipments are disclosed. A reference signal which is a repetitively occurring signal is transmitted through a cable. A phase difference between the reference signal transmitted through the cable and the reference signal directly transmitted without routing the cable is detected, and a signal representing the cable length is produced based on the detected phase difference.Type: GrantFiled: February 28, 1992Date of Patent: September 14, 1993Assignee: Hitachi Denshi Kabushiki KaishaInventor: Nobuaki Fujimura
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Patent number: 5159275Abstract: Method and apparatus for detecting a length of a cable connecting information equipments are disclosed. A reference signal which is a repetitively occurring signal is transmitted through a cable. A phase difference between the reference signal transmitted through the cable and the reference signal directly transmitted without routing the cable is detected, and a signal representing the cable length is produced based on the detected phase difference.Type: GrantFiled: December 4, 1990Date of Patent: October 27, 1992Assignee: Hitachi Denshi Kabushiki KaishaInventor: Nobuaki Fujimura