Patents by Inventor Sigeki Hayasaka

Sigeki Hayasaka 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: 4956895
    Abstract: A butterfly clip removably mounted on a paging receiver or like portable equipment is made up of a support section which comprises a molding of plastics, and a clip section constantly biased by a coil spring, which is received in the support section, and openably held by the support section through a spring pin. The support section is shaped complementary to the contour of the equipment. The housing of the equipment is formed with a slit-like recess on its top and a generally L-shaped recess adjacent to its lower end. On the other hand, the support section of the clip is provided with projections at the top of its inner wall which mates with the recess provided on the top of the housing, and a generally J-shaped metal member at its lower end which mates with the recess provided in the lower portion of the housing.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: September 18, 1990
    Assignee: NEC Corporation
    Inventor: Sigeki Hayasaka
  • Patent number: 4879759
    Abstract: A paging receiver to which various extra functions may be selectively added. A receiver body of the paging receiver has a miniature and thin configuration and is provided with only a sound type alerting function. Minimum necessary degrees of receiving function, antenna function, speaker function and power psupply function are furnished with in the receiver body. A holder adapted to hold the receiver body is provided with advanced functions a well as a vibrator function and other extra functions. Only when the holder is combined with the receiver body, it allows the receiver to exhibit the advanced functions or the extra functions as desired. In order that the receiver body and the holder may be fixed to each other when combined, a housing of the receiver body and the holder are individually provided with mating portions and electrical connecting terminals.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: November 7, 1989
    Assignee: NEC Corporation
    Inventors: Takeshi Matsumoto, Takashi Oyamada, Sigeki Hayasaka
  • Patent number: 4786889
    Abstract: A paging receiver having a function of alerting a person to reception by causing a motor to vibrate a housing of the receiver is disclosed. A generally box-like motor receiving portion is positioned on the outer side periphery of a battery casing and provided with a recess which is complementary in shape to a motor. A cover is positioned to cover the motor, which is placed in the motor receiving portion, and fastened to the motor receiving portion to fix the motor to the same portion. The battery casing includes a side wall which is shaped flat complementary to a ROM, and is made of a semi-transparent material, so that a ROM function label is visible from the outside merely by removing a battery cover. A flat metal fitting is press-fitted in a box-like projection which extends from a part of the side wall of the battery casing, whereby the printed circuit board and the battery casing are rigidly connected together.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: November 22, 1988
    Assignee: NEC Corporation
    Inventor: Sigeki Hayasaka
  • Patent number: D452232
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: December 18, 2001
    Assignee: NEC Corporation
    Inventors: Sigeki Hayasaka, Yoshiaki Ohta, Yoshinao Segawa
  • Patent number: D304192
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: October 24, 1989
    Assignee: NEC Corporation
    Inventors: Sigeki Hayasaka, Mamoru Takahashi
  • Patent number: RE34182
    Abstract: CLAIM.[.A radio pager, as shown..]. .Iadd.The ornamental design for a radio pager, as shown..Iaddend.DESCRIPTION.[.FIG. 1 is a front, top and right side perspective view of a radio pager showing our new design;.]. .Iadd.FIG. 1 is a top, front and left side perspective view of a radio pager showing our new design. .Iaddend.FIG. 2 is a front elevational view thereof;FIG. 3 is a rear elevational view thereof;FIG. 4 is a top plan view thereof;FIG. 5 is a bottom plan view thereof;FIG. 6 is a left side elevational view thereof; and,FIG. 7 is a right side elevational view thereof.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: February 23, 1993
    Assignee: NEC Corporation
    Inventors: Sigeki Hayasaka, Mamoru Takahashi
  • Patent number: D338465
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: August 17, 1993
    Assignee: NEC Corporation
    Inventors: Sigeki Hayasaka, Takashi Oyamada, Kozo Maemura
  • Patent number: D343618
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: January 25, 1994
    Assignee: NEC Corporation
    Inventors: Sigeki Hayasaka, Masaru Inagaki, Tetsuya Nagata
  • Patent number: D346275
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: April 26, 1994
    Assignee: NEC Corporation
    Inventors: Sigeki Hayasaka, Toshiaki Mizushima