Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo Kenkyusho

Takashi Asano

Kenichi Suzuki

Fumio Shimizu

Yasuyuki Suzuki

Hideo Aihara

Mineo Ogino

Kazuyoshi Ogawa

Masaki Kajino

Naoki Hasegawa

Junji Nakanishi

Kenjiro Shiba

Masazumi Onishi

Shinichi Miura

Tatsuhiro Terada

Kazuhiro Mori

Hiroaki Muramatsu

Kyoko Tsusaka

Tadashi Kawamoto

Yuta Ikehata

Yuichi Shimo

Masazumu Onishi

A power control unit in which a converter is disposed on an inverter, and a gap is formed between an inverter case and a converter case, wherein the inverter has an inverter protruding portion that protrudes toward the converter side on a surface of the inverter case which faces the converter, the converter has a converter protruding portion that protrudes toward the inverter side on a surface of the lower cover which faces the inverter that closes an opening formed on the lower surface side of a case main body of a converter case, the inverter protruding portion and the converter protruding portion are disposed in contact with each other, and the converter protruding portion is disposed on the lower cover to correspond to a position of a rib that can come into contact with the lower cover.

Power control unit

An electrical device may be provided with: a housing having a side surface; and a connector opening provided on the side surface of the housing and to which a connector is connected. The side surface includes a groove surrounding the connector opening, the connector includes a ring-shaped rib fitted into the groove, the connector has an upper surface and a lower surface that are inclined as viewed along a normal direction of the side surface, and a lower end of the lower surface includes a step protruding downward, the side surface includes a drain hole at a position below the step, and the drain hole communicates inside of the groove and underside of the groove.

Electrical device

A membrane electrode gas diffusion layer assembly for a fuel cell includes a membrane electrode assembly including an electrolyte membrane, an anode catalyst layer, and a cathode catalyst layer, an anode diffusion layer joined to the anode catalyst layer of the membrane electrode assembly, and a cathode diffusion layer joined to the cathode catalyst layer of the membrane electrode assembly, in which at least one of the anode diffusion layer and the cathode diffusion layer includes a microporous layer that makes contact with the membrane electrode assembly, the microporous layer contains a cerium compound, and at least one of the electrolyte membrane, the anode catalyst layer, and the cathode catalyst layer comprises cerium ions.

Membrane electrode gas diffusion layer assembly and manufacturing method thereof

A case that houses a chain includes a first cover member fixed to a cylinder block and a cylinder head, and a second cover member arranged on the opposite side of the cylinder block and the cylinder head from the first cover member. In an intermediate part, which is a part of a confronting wall of the first cover member between the first flange and the second flange, a cover-side rib is provided, having a height so that a distal end of the cover-side rib is not in contact with the cylinder block.

Internal combustion engine

A brightening chemical polishing solution for a hardened steel article (e.g., a carburized and quenched gear) comprises hydrofluoric acid having a molar concentration of from 0.2 to 2 mol/l, hydrogen peroxide having a molar concentration of from 0.4 to 4 mol/l, and water, a molar ratio of the hydrofluoric acid to the hydrogen peroxide being from 1:1.5 to 1:2.8. The steel article is quench hardened and is chemically polished in the solution. A shot-peening is additionally performed, prior to the polishing.

Brightening chemical polishing solution for hardened steel article and

Brightening chemical polishing solution for hardened steel article

Growing community of inventors

Okazaki, Japan

Takashi Asano