Patents by Inventor Mitsuru Hagimoto

Mitsuru Hagimoto 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: 6226135
    Abstract: The bottom surfaces of an entering surface-forming portion 1a for forming a light-entering surface 11a of a reflector type prism 11 and of an emitting surface-forming portion 1b for forming a light-emitting surface 11b of the reflector type prism 11 are formed as concave surfaces in a die 1. Even if shrinkage of the reflector type prism 11 occurs during its formation, the light-entering surface 11a and the light-emitting surface 11b are, at least, not formed as concave surfaces, so that a light beam entering the reflector type prism 11 and a light beam emitted from the reflector type prism 11 are prevented from becoming scattered.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: May 1, 2001
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Mayumi Masui, Mitsuru Hagimoto
  • Patent number: 5925867
    Abstract: An optical device reads the information such as bar codes on an object. A light-emitting element emits a read-beam. A lens cover has an inclined surface that is at an angle with the read-beam and reflects the read-beam toward a bar code, the read-beam emerging as a reflected-beam after reflection from the surface of the bar code. The reflected-beam contains a component directly reflected from the bar code and a component randomly reflected by the white and black areas of the bar code. An optical system in the form of a lens is arranged between the lens cover and the light-emitting element, and converges the read-beam to the bar code. The inclined surface is also at an angle with the reflected-beam and reflects the reflected-beam toward a second optical system in the form of a lens which in turn converges the reflected-beam emerging from the inclined surface to a light-sensing element. The light-sensing element detects the reflected-beam.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: July 20, 1999
    Assignee: OKI Electric Industry Co., Ltd.
    Inventor: Mitsuru Hagimoto
  • Patent number: 5898172
    Abstract: A sensor mounting structure superior in durability for supporting by a frame member 17 on one side of a transport path a sensor body 22, including at least one of a light emitter 18 and a light detector 19, for detecting an object being transported along the transport path 12, the mounting structure comprising a pair of rising portions 23 spaced apart from each other and rising from the frame member 17 along both sides of the sensor body 22, each rising portion having a lock portion 24; and a pair of hook portions 25 releasably engaging the lock portions 24, wherein each hook portion 25 is capable of being deformed elastically in the direction in which both hook portions 25 come closer to each other in order to engage or disengage the corresponding lock portions 24.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: April 27, 1999
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Mayumi Masui, Mitsuru Hagimoto