US Patent No: 5,109,539

Number of patents in Portfolio can not be more than 2000

Portable communication device

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Importance

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Abstract

A portable radio device in which a radio telephone device body and a receiver unit are separately constructed and connected together by a pair of adjustable supporting rods. As a result, the distance between the radio telephone device body and the receiver unit can be adjusted according to whether the device is being used as a telephone unit or a pager unit. While being used as a telephone, the distance between a receiver and a microphone can be easily adjusted to the distance between an ear and a mouth of a user. When the device is used as a paper, it can be miniaturized so as to be conveniently carried.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MITSUBISHI DENKI KABUSHIKI KAISHATOKYO19938

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inubushi, Toshiya Chiyoda-ku, JP 14 259
Musha, Atsushi Tokyo, JP 7 215

Cited Art

Patent Info (Count) # Cites Year
 
OLYMPUS OPTICAL CO., LTD. (1)
4,388,492 Miniature stereo device with extensible speakers 20 1980
 
ROHM AND HAAS COMPANY (1)
4,877,818 Electrophoretically depositable photosensitive polymer composition 24 1988

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
PALM, INC. (10)
7,692,667 Handheld computer having moveable segments that are interactive with an integrated display 8 2001
7,187,363 Integrated handheld data processing device having a sliding form factor 22 2001
7,992,096 Data browsing method and system for user interface 2 2003
7,802,206 Dynamic sizing user interface method and system for data display 6 2003
7,880,724 Integrated handheld data processing device having a sliding form factor 6 2006
8,126,519 Housing for mobile computing device having construction to slide and pivot into multiple positions 0 2007
7,865,180 Automated telephone conferencing method and system 2 2007
8,233,948 Slider assembly for a housing of a mobile computing device 1 2007
8,150,482 Mobile computing device with moveable housing segments 2 2008
8,200,298 Keypad housing configuration for a mobile computing device 2 2008
 
SONY CORPORATION (7)
5,251,329 Radio telephone apparatus with microphone mounted in battery case 53 1991
5,603,100 Portable telephone with speaker projected in front upper oblique direction 13 1994
D395299 Wireless telephone 13 1996
D407396 Wireless telephone 12 1997
D417455 Wireless telephone 2 1998
D421256 Wireless telephone 13 1999
D421257 Wireless telephone 6 1999
 
Coby Electronics Corporation (5)
D481374 Portable radio 25 2002
D490069 Portable radio 20 2003
D490070 Portable radio 31 2003
D539782 Pocket radio 7 2006
D531615 Pocket radio 9 2006
 
MOTOROLA MOBILITY LLC (5)
5,815,820 Transmitter having adjustable power levels responsive to the position of a movable antenna 22 1992
5,907,615 Miniature wireless communication device 45 1992
5,924,044 Modular communication device and method of providing communications therewith 64 1997
6,934,568 Extending hinged flip apparatus for a communication device 32 2002
7,257,430 Self configuring multiple element portable electronic device 8 2002
 
MOTOROLA SOLUTIONS, INC. (5)
D389827 Two way portable communication device 38 1996
D389139 Portable radio 54 1996
D395882 Housing for a two-way communications device 37 1997
D413022 Holster clip for a portable communications device 7 1998
D412501 Portable communications device 33 1998
 
MOTOROLA, INC. (5)
5,204,985 Housing fastener and power source contact 0 1990
5,898,933 Apparatus and method for generating a control signal responsive to a movable antenna 19 1991
5,739,792 Wireless communication device with electrical contacts 13 1995
D387758 Portable communications device 36 1996
6,154,540 Radio communication device with expanded keypad capability 2 1999
 
ANDREA ELECTRONICS CORPORATION (3)
D377023 Untethered communications/media handset 10 1995
D381980 Tethered media/communication handset 1 1996
D377024 Tethered media/communication handset 7 1996
 
NEC CORPORATION (3)
5,450,619 Slidably retractable portable telephone apparatus 34 1993
5,369,788 Miniature portable radio communication apparatus 35 1994
5,926,748 Portable radio apparatus capable of keeping antenna away from user when calling 10 1994
 
CALIBRE INTERNATIONAL, LLC (2)
D497607 LED radio 1 2003
D497153 LED radio 2 2003
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (2)
5,664,013 Embedded notepad system for a cellular telephone 68 1995
8,332,553 Method and apparatus for accessing a contacts database and telephone services 0 2010
 
SHURE ACQUISITION HOLDINGS, INC. (2)
D536692 Receiver assembly 23 2005
D535974 Receiver assembly 24 2005
 
ACTION ELECTRONICS CO., LTD. (1)
D535284 Audio tuner 2 2005
 
ASPIRE CORPORATION (1)
5,767,778 Event sensing circuit and alert generator 21 1996
 
CENTURION WIRELESS TECHNOLOGIES, INC. (1)
7,725,083 Antenna system for a wireless communication device 1 2000
 
FUJITSU LIMITED (1)
5,197,091 Portable telephone having a pipe member which supports a microphone 61 1990
 
GATEWAY, INC. (1)
6,760,600 Portable communication apparatus 26 1999
 
IDT International (1)
D393465 Voice memo 4 1996
 
Kabushiki Kaisha Kaken Corporation (1)
5,497,506 Portable telephone 22 1994
 
Lanxide Technology Company, LP (1)
5,435,966 Reduced metal content ceramic composite bodies 2 1993
 
MERIDIAN WIRELESS TECHNOLOGIES, INC. (1)
D389477 Portable hinged phone 12 1997
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
D444454 Portable telephone device 19 2000
 
MITSUBISHI ELECTRONICS AMERICA, INC. (1)
D381020 Telephone with slidable cover 23 1996
 
Mitsubishi International Corporation (1)
5,307,401 Cellular telephone with microphone extender 25 1993
 
MOBILEMEDIA IDEAS LLC (1)
6,064,734 Telephone with sliding keypad 31 1997
 
NOKIA MOBILE PHONES LTD. (1)
6,400,931 Card-like wireless communication device 22 1999
 
PHILIPS CONSUMER COMMUNICATIONS B.V. (1)
D396464 Telephone 15 1997
 
PROCON, INC. (1)
D584710 Carabineer wireless communication device 4 2007
 
SAMSUNG ELECTRONICS CO., LTD. (1)
5,321,738 Switch apparatus of a portable cordless telephone using an antenna 23 1991
 
U.S. Philips Corporation (1)
5,982,883 Telephone comprising a sliding microphone 11 1997
 
Zilnek, Inc. (1)
D342739 Sound generator housing 36 1991
 
Other [Check patent profile for assignment information] (3)
5,440,629 Changeable contour construction of wireless telephone 32 1993
5,687,232 Adjustable length telephone handset 0 1996
D389829 Portable phone 3 1997