Patents by Inventor Sakae Itakura

Sakae Itakura 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: 7003268
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which rotates to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: February 21, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Publication number: 20050221865
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which rotates to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Application
    Filed: June 6, 2005
    Publication date: October 6, 2005
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Publication number: 20030194975
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which rotates to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Application
    Filed: May 20, 2003
    Publication date: October 16, 2003
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Patent number: 6628970
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which rotates to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: September 30, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Publication number: 20020025830
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which turns to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time and the sound volume can be adjusted during a conversation time. The adjusting operation can be performed from both the front and rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Application
    Filed: October 30, 2001
    Publication date: February 28, 2002
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Patent number: 6334049
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which turns to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: December 25, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Patent number: 6094586
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which turns to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: July 25, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Patent number: 5937360
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which turns to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and, the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: August 10, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Patent number: 5742912
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which turns to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: April 21, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Patent number: 5541813
    Abstract: A case houses a portable telephone apparatus having a display portion, an operating portion, a speaker portion and a microphone portion provided with respect to two main portions and a hinge portion which connects the main portions so as to be opened and closed. The case is formed of plastic molding. The hinge portion is formed of a soft resin having a resiliency, and the main portion is formed of a hard resin and integral with the hinge portion. A wiring member for provide an electric connection between the main portions extend through the hinge portion.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: July 30, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Hideaki Satoh, Sakae Itakura, Kenichi Waragai
  • Patent number: 5436954
    Abstract: A portable radio telephone set provided with a display section includes a rotary selector which turns to select various functions. A menu displayed on the display section is selected by the rotary selector during a non-conversation time, and the sound volume can be adjusted during the conversation time. The adjusting operation can be performed from both the front and the rear sides of the telephone set. The rotary selector and button keys are arranged within the operation range of the thumb, and ordinary dial functions performed by operating these rotary selector and button keys are provided.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: July 25, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Takanori Nishiyama, Kazunori Yanagisawa, Sakae Itakura
  • Patent number: 5432676
    Abstract: A case for housing an electronic apparatus has two main portions and a hinge portion which connects the main portions so as to be opened and closed. The case is formed of plastic molding. The hinge portion is formed of a soft resin having a resiliency, and the main portion is formed of a hard resin and integral with the hinge portion. A wiring member for provide an electric connection between the main portions extend through the hinge portion. The wiring member passes at a center of rotation on which the hinge portion is turned.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: July 11, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Hideaki Satoh, Sakae Itakura, Kenichi Waragai
  • Patent number: 4636919
    Abstract: A multilayer printed circuit board comprises: part terminal insertion holes and part terminal insertion lands formed at intersecting points between a first plurality of main reference grid lines extending in one direction and a second plurality of main reference grid lines extending in the other direction perpendicular to the one direction; at least two signal layers, one of the signal layers being constituted by first signal lines disposed on a plurality of ones of first subsidiary grid lines drawn parallelly with the first main reference grid lines on positions obtained by equidistantly dividing each gap between adjacent ones of the first main reference grid lines into n portions, the other one of the signal layers being constituted by second signal lines disposed on a plurality of ones of second subsidiary grid lines drawn parallelly with the second main reference grid lines on positions obtained by equidistantly dividing each gap between adjacent ones of the second main reference grid lines into n portion
    Type: Grant
    Filed: February 12, 1986
    Date of Patent: January 13, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Sakae Itakura, Osamu Morikawa