Panasonic Intellectual Property Management Co., Ltd.

Daikin Industries, Ltd.

Kubota Corporation

Hideo Sakata

Hiroki Hayashi

Shinichi Kinoshita

Takumi Yamaguchi

Yusuke Nakamura

Shigeaki Yamazaki

Kenzou Takahashi

Hiroyuki Arima

Yoshiko Kuwajima

Hiroyuki Arai

Yasuyuki Ito

Motohiro Sakata

Tomoya Hidaka

Nao Matsumura

Toshiaki Shimizu

Michiaki Okada

Atsushi Maruo

Shinya Takano

Tomo Shimada

Mayuko Takano

Kensuke Ishida

Nao Miyaguchi

Hiroshi Niimi

Takahiro Mizoguchi

Hiroshi Mura

Keisuke Masunaga

Tani Akinori

A electrochemical device negative electrode includes: a negative electrode core material; and a negative electrode material layer supported on the negative electrode core material. The negative electrode material layer contains a carbon material. And a surface layer portion of the negative electrode material layer has a lithium carbonate-containing region.

Electrochemical device negative electrode and electrochemical device, and method for manufacturing electrochemical device negative electrode and method for manufacturing electrochemical device

An electrolytic solution for an electrochemical device a solvent, an ionic substance, and an additive agent, the additive agent containing α-methyl-γ-butyrolactone and δ-valerolactone.

Electrolyte solution for electrochemical device, and electrochemical device

The present invention provides an electrolytic solution capable of providing an electrochemical device, such as a lithium ion secondary battery, or a module that has excellent high-temperature storage performance. The electrolytic solution contains: a homocyclic compound other than aromatic compounds; and a cyclic dicarbonyl compound. The homocyclic compound contains at least one group selected from the group consisting of a nitrile group and an isocyanate group.

Electrolytic solution, electrochemical device, lithium-ion secondary cell and module

An electrochemical device of the present invention includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The positive electrode includes a positive current collector containing aluminum, a positive electrode material layer containing a conductive polymer, and an aluminum oxide layer disposed on a surface of the positive current collector. The aluminum oxide layer contains fluorine.

Electrochemical device and method for manufacturing electrochemical device

A sheet antenna apparatus capable of favorably receiving vertically polarized electromagnetic waves is provided which includes an antenna element 11 comprising a main antenna portion 15 having a vertical segment 19, a pair of upper and lower lateral segments 20 and 21 respectively extending laterally from opposite ends of the vertical segment 19 and a pair of feeder segments 22 respectively extending inwardly from the terminating ends of the lateral segments 20 and 21, and a parasitic antenna element comprising an inner loop portion 16 and an outer loop portion 17 which form a double loop and are disposed as adjoining to one of the lateral segments 20 and 21. The vertical segment 19 of the antenna element 11 substantially coincides with the direction of vertically polarized electromagnetic waves and hence receives vertically polarized electromagnetic waves favorably. Further, when the frequency of received electromagnetic waves is high, the inner loop portion 16 becomes resonant with the main antenna portion 15, while when the frequency of received electromagnetic waves is low, the outer loop portion 17 becomes resonant with the main antenna portion 15. Thus, the antenna apparatus can successfully receive vertically polarized electromagnetic waves within an extensive frequency range.

Sheet antenna apparatus

Growing community of inventors

Osaka, Japan

Hideo Sakata