Patents by Inventor Isamu Nakajima

Isamu Nakajima 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: 20060170423
    Abstract: A buried type measuring instrument has a sensing unit 10A which is formed in part of a case 10 and senses a physical value pertaining to a change of state of a structure. This case 10 accommodates a transducer 11 for converting the physical value sensed by the sensing unit 10A; a transmission circuit unit 12 for outputting a carrier signal modulated by an output of the transducer 11; a drive unit 13 for driving the transducer 11 and the transmission circuit unit 12 with power supply from a battery 15; and a transmission coil 14 for receiving an output of the transmission circuit unit 12 and generating a low frequency magnetic field signal. This case 10 is buried in the structure. Consequently, it is possible to provide a measuring instrument which can adopt a radio communication mode to secure a sufficient cutoff function of the structure and avoid damage to the measuring sensor, allows remote data acquisition, and even has no adverse effect on strength characteristics of the structure.
    Type: Application
    Filed: December 25, 2003
    Publication date: August 3, 2006
    Inventors: Yuji Kohgo, Isamu Nakajima, Shinichi Endoh, Ryoichi Tohmetsuka, Nobuyoshi Yamazaki, Komci Yano, Akira Takahashi, Toshiaki Kakue
  • Publication number: 20060018227
    Abstract: The controller of the present invention includes an address management table that stores address information of valid data among the data stored in a flash memory, a status flag stored in the flash memory indicating that the data before rewriting and the data after rewriting are in process of rewriting, and a data rewriting process unit (the data management means) that changes the address information of the valid data from the data before rewriting to the data after rewriting at a given timing. It is thus possible to specify an area in process of rewriting even if the power supply is stopped in process of rewriting. It is also possible to judge the valid data when the process is restarted from the power off and erase the unnecessary data.
    Type: Application
    Filed: July 22, 2005
    Publication date: January 26, 2006
    Inventor: Isamu Nakajima
  • Publication number: 20050166005
    Abstract: A flash memory is arranged to notice the state inside the flash memory to the outside for supporting a garbage collection. The flash memory includes a state information generator and an output unit. The state information generator generates state information that indicates a state of each user area for noticing it to the outside. The output unit outputs the state information to the outside for noticing the state inside the flash memory to the outside.
    Type: Application
    Filed: March 18, 2005
    Publication date: July 28, 2005
    Inventors: Osamu Nagano, Isamu Nakajima
  • Publication number: 20040128432
    Abstract: A method for storing in a nonvolatile memory by which a data restoration process is performed properly after a return from, for example, a shutoff of the supply of power. A storage management information store section in a central processing unit stores storage management information regarding the storage management of data to be stored in a nonvolatile memory by a data store section. The unit of the data is smaller than an erase unit in the nonvolatile memory. A storage completion information store section stores storage completion information indicative of the completion of the storing of the storage management information in the nonvolatile memory. A stored information judgment section judges, after a return from interruption of a process which occurred in the middle of the storage management information being stored, by referring to the storage completion information whether the storing of the storage management information is completed.
    Type: Application
    Filed: December 5, 2003
    Publication date: July 1, 2004
    Applicant: Fujitsu Limited
    Inventor: Isamu Nakajima
  • Patent number: 5592294
    Abstract: An apparatus for measuring a characteristic of an object, the apparatus includes: a light projector which projects light to an object; a photosensor which senses light which has been projected by the light projector and reflected from the object; a calculator which calculates a characteristic of the object based on an output of the photosensor; an angle detector which detects respective angles of the light projector and the photosensor with respect to the object; an adjustment mechanism which adjusts the respective angles of the light projector and the photosensor; and a controller which controls the adjustment mechanism based on a detection result of the angle detector so that the light projector and the photosensor come into their respective desired angles.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: January 7, 1997
    Assignee: Minolta Co., Ltd.
    Inventors: Mitsunobu Ota, Wataru Yamaguchi, Isamu Nakajima
  • Patent number: 5410204
    Abstract: The present invention discloses an ultrasonic oscillator including: a plurality of resonators; and an electricity-to-mechanical energy conversion element disposed among a plurality of the resonators and pressed by a fastening member, wherein the ultrasonic oscillator bends and/or oscillates when alternating voltage is applied to the electricity-to-mechanical energy conversion element, and the resonators do not come in contact with the fastening member in a portion adjacent to the end surface of the ultrasonic oscillator.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: April 25, 1995
    Assignee: Olympus Optical Co. Ltd.
    Inventors: Hiroyuki Imabayashi, Takanao Fujimura, Tomoki Funakubo, Isamu Nakajima
  • Patent number: 5159198
    Abstract: An infrared image pick-up apparatus includes: a body having a condenser lens for condensing an infrared ray emitted from an object, a sensor for detecting intensity of the condensed ray and generating an electric signal corresponding to the intensity, a signal processing circuit for processing the signal from the sensor, and a display device for displaying a two-dimensional infrared image in accordance with a signal from the circuit; and a grip provided separately from the body and attached thereto. The grip has an operating member for adjusting an infrared image on the display device.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: October 27, 1992
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hiroshi Kohsaka, Masakazu Nakanishi, Toshio Miyashita, Isamu Nakajima, Yuji Takumiya, Kenji Hamaguri, Hiroaki Iio
  • Patent number: 4931816
    Abstract: An internal pressure adjusting mechanism for equalizing the internal and external pressures of a waterproof product, such as an underwater camera, when the internal pressure of the product varies due to a change in temperature or atmospheric pressure. The internal pressure adjusting mechanism includes an air circulation passage in the product for establishing communication between the interior of the product and an external atmosphere, and a water-repellent porous member in the passage to permit air to freely circulate through the passage while preventing water from passing therethrough.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: June 5, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Makoto Kamo, Isamu Nakajima
  • Patent number: 4702087
    Abstract: An improved air conditioner for supplying temperature-controlled air to the interior of a room from a ceiling position where the air conditioner is installed without danger of condensate dripping from the air conditioner into the room. Air is sucked from an outer case intake vent into a heat exchanger and the cooled air is blown into the room with blowers. The heat exchanger and the blowers are installed in a suspended outer case in a space above the ceiling of the room. The air sucked from the intake vent is led to air supply vents provided on both sides of the undersurface of the outer case through the air supply trunk, the air supply trunk being divided into sections by a bulkhead.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: October 27, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Isamu Nakajima, Yasuo Nakashima, Nobuyuki Miyazaki, Kazuo Ishino