公开(公告)号：US11220284B2

公开(公告)日：2022-01-11

申请号：US16742116

申请日：2020-01-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takaaki Hyoudou ,  Tomohisa Hayakawa ,  Kazumi Nagayama ,  Yuki Sonoda ,  Hiroshi Isono

IPC: B62D1/04 ,  H05B3/34 ,  B62D1/06

Abstract: A steering wheel heater includes: a base material that is wound around a steering wheel; a heater wire that generates heat by an electric current flowing through the heater wire; and a sewing thread that is used to sew the heater wire to one surface of the base material. A plurality of through holes that have a diameter smaller than a sewing pitch of stitches of the sewing thread used to sew the heater wire are formed in the base material.

公开(公告)号：US11325511B2

公开(公告)日：2022-05-10

申请号：US16481357

申请日：2018-01-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomohisa Hayakawa ,  Takaaki Hyoudou

IPC: B60N2/56 ,  H05B3/20

Abstract: A seat heater mounted to a seat includes: a heating wire; a base material provided with the heating wire and having air permeability; an excessive temperature rise prevention element that prevents an excessive temperature rise of the heating wire; and an auxiliary heating wire that heats the excessive temperature rise prevention element, in which air permeability in an auxiliary heater area provided with the auxiliary heating wire is lower than air permeability in a heater area provided with the heating wire, so that heat dissipation in the auxiliary heater area is suppressed to enable a temperature of the excessive temperature rise prevention element to rise efficiently to follow the temperature rise of the heater area.