Mobile phone

• US 6,876,875 B2
• Filed: 01/02/2002
• Issued: 04/05/2005
• Est. Priority Date: 03/02/2001
• Status: Expired due to Fees

• Current Assignee: Beet Office Corporation, Ken Shimazaki, Shu Shimazaki
• Original Assignee: Beet Office Corporation, Ken Shimazaki, Shu Shimazaki
• Inventors: Shimazaki, Ken, Shimazaki, Shu
• Primary Examiner(s): Milord, Marceau
• Application Number:
  US10/039,014
• Publication Number:
  US 20020123375A1
• Time in Patent Office: 1,189 Days
• Field of Search: 455/575.1, 455/90.3, 455/569.1, 379/455, 379/428.01, 379/447
• US Class Current: 455/575.1
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03
• CPC Class Codes: H04M 1/18 Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment H04M1/19 takes precedence
• CPC Class Codes: H05K 1/0212 Printed circuits or mounted components having integral heating means
• CPC Class Codes: H05K 1/144 Stacked arrangements of planar printed circuit boards

Abstract

The purpose of the invention is to provide an improved mobile phone with prevention of numbed hands of the user under even a cold environment. The mobile phone includes a heating circuit. In the heating circuit, a battery 14 has connections with leading and trailing ends of a line 20 to be heated. The heated line 20 has connections with a thermostat 22 and an outside-operable switch 23. The heating circuit is disposed within the area where is between the bottom and the leading edge of the back casing 1b of the housing in the mobile phone.

Claims

1. A mobile phone comprising a housing comprised of a pair of front and back casings, the front casing having a display device and a plurality of keys;

power source means disposed in said housing; and

a heating circuit, which comprises a line to be heated through connection with said power source means, the heating circuit having a thermostat and a out-operable switch which are connected therein, the heated line being arranged between the distal and proximal portions of the back casing,

wherein said housing has separation of distal and proximal housing parts extending from respectively, a point substantially intermediate thereof to respective distal and proximal ends of the mobile phone, a point between the trailing end of said distal housing part and the leading end of said proximal housing part has connecting means for connecting said distal housing part pivotable thereabout to said proximal housing part pivotable thereabout so that said housing has fold thereabout, a part of said heating circuit has a meandrous arrangement which is at the back casing of said proximal housing, and each of said thermostat and out-operable switch of said heating circuit is at the back casing of said distal housing part.

2. The mobile phone in claim 1, wherein the back casing comprises aluminum alloy.

3. The mobile phone in claim 1, wherein said connecting means is hinge means that it connects said distal and proximal housing parts pivotable thereabout, and is provided at the opposite ends of respective distal and proximal housing parts to each other, the heated line on the side of said distal housing part having connection with the heating line on the side of said proximal housing through at least one conductive element at said hinge means.

4. A mobile phone comprising a housing comprised of a pair of front and back casings, the front casing having a display device and a plurality of keys;

power source means disposed in said housing; and

a heating circuit, which comprises a line to be heated through connection with said power source means, the heating circuit having a thermostat and an out-operable switch which are connected therein, the heating circuit being arranged between the distal and proximal portions of the back casing,

wherein said housing has separation of distal and proximal housing parts extending from respectively, a point substantially intermediate thereof to respective distal and proximal ends of the mobile phone so that it can fold, and

wherein the distal and proximal housing parts couple with each other through hinge means at the point substantially intermediate of the mobile phone that it is unfolded, the hinge means being opposedly provided on each of the distal and proximal housing at respective trailing and leading ends thereof, said heated line on the side of said distal housing part having connection with said heated line on the side of said proximal housing part through at least one conductive element provided at the position of the said hinge means.

5. The mobile phone in claim 4, wherein a part of the heated line in said heating circuit has a meandrous arrangement.

6. The mobile phone in claim 5, wherein the back casing comprises aluminum alloy.

7. The mobile phone in claim 5, wherein the heated line of said heating circuit has a partial meandrous arrangement, and wherein the back casing comprises aluminum alloy.