Panasonic Intellectual Property Management Co., Ltd.

Panasonic Holdings Corporation

Kazuki Kanai

Yoshio Koyanagi

Yuki Tanaka

Ryosuke Hasaba

Haruo Hayakawa

A wireless power transmitter includes an antenna that transmits a radio wave, a phase shift circuit that changes a phase of the radio wave transmitted from the antenna, a control device that controls the phase shift circuit, and a backscatter signal receiver that receives a backscatter signal. The control device executes phase optimization processing of controlling the phase shift circuit so that a strength of the backscatter signal received by the wireless power transmitter is maximized.

Wireless power transmitter, wireless power receiver, and wireless power transfer system

A microstrip antenna includes a first metal layer that constitutes an antenna element, a second metal layer that constitutes a ground, and a flexible member that separates the first metal layer and the second metal layer by a predetermined distance. The first metal layer and the second metal layer each are made of a metal or a metal foil. At least one of the first metal layer and the second metal layer is not adhered to the flexible member but is in close contact with the flexible member by a close contact unit. The close contact unit is a clamping mechanism including a first plate, a second plate, and a connecting member. The first plate and the second plate are connected to each other by the connecting member. The connecting member is an elastic body.

Microstrip antenna and wearable sensor terminal

An antenna device includes a substrate having a ground conductor, an antenna conductor disposed approximately parallel with the ground conductor with an air layer or a dielectric layer, plural short-circuiting conductors that connect the antenna conductor to the ground conductor, and a feed conductor disposed in a vicinity of one of the plural short-circuiting conductors and that feeds the antenna conductor with power. When a wavelength of frequency used in the antenna device is represented by &#x3bb;, an outer circumferential length of the slot is approximately 1&#x3bb; to 2&#x3bb; and a width of the slot is 0.005&#x3bb; to 0.05&#x3bb;, an interval between the plural short-circuiting conductors is shorter than or equal to &#x3bb;/2, and a distance between the antenna conductor and the ground conductor is 0.005&#x3bb; to 0.05&#x3bb;.

Growing community of inventors

Kanagawa, Japan

Kazuki Kanai