Hitachi Koki Co., Ltd.

Takafumi Itoh

Masanori Okada

Masato Sakai

Haruhisa Fujisawa

Shinichi Kakefuda

Rui Akiba

Masayuki Ogura

Tomoyuki Kawahara

Takuhiro Murakami

Hiroyuki Hasegawa

Miyoji Onose

Kazuhiko Funabashi

Takeshi Taniguchi

Masanori Watanabe

Yoshinori Ishizawa

Shinji Watanabe

Yasushi Nakano

Hideki Watanabe

Takuya Yoshinari

Yuji Kishima

Kenichi Yamada

Shigeru Takahashi

Takashi Kawamata

Satoshi Iwata

Norihide Tao

Hisashi Irokawa

Jyunichi Suzuki

Portable electric power sander

This invention provides an electrical apparatus that includes a main body portion, a battery pack, and a frame portion. The main body portion comprises a converting portion that may convert electric power to one of light, wind, heat, and sound; and an outputting portion. The battery pack may detachably mounted on a battery holder provided at the main body portion, and may supply electric power to the converting portion. The frame portion may rotatably support the main body portion, and may define a first ground contact plane that can contact a ground surface and a second ground contact plane that can contact the ground surface at a different angle from an angle of the first ground contact plane. The main body portion may be rotatable relative to the frame portion without contacting the ground surface.

Electric device outputting light, wind, heat or sound

Battery pack

An electric device includes: a device body; and a frame guard. The device body has a plurality of surfaces for defining a three-dimensional configuration. The frame guard is configured to guard the device body. The frame guard is connected to the device body and disposed outside the device body. The plurality of surfaces is all disposed inside the frame guard.

Electric device with surrounding protective frame

In order to provide the electrical apparatus capable of improving the handleability, the electrical apparatus of the present invention includes the fan main body portion converting electrical power into wind to output the converted wind from a front face side to an outside of the fan main body portion, the pair of side frames supporting the fan main body portion, the pair of bottom frames extending from lower ends of the side frames to a rear side, the connecting frame connecting the pair of bottom frames, and the battery retaining portion having a rechargeable battery for supplying electrical power to the fan main body portion detachably attached thereto, where the battery retaining portion is provided in the connecting frame and disposed with a space from an air inlet port at a rear face of the tan main body portion.

Electrical apparatus

Portable electric hammer drill

The backpack-type power supply includes a rechargeable battery, a case, a harness, and an operation unit. The case accommodates the rechargeable battery. A user wears the case on a back of the user by the harness. The operation unit includes at least one of a switch and a display unit. The switch is configured to enable or disable the rechargeable battery. The display unit is configured to display a battery level of the rechargeable battery.

Backpack-type power supply including operation portion

Circular saw

A power supply device includes a main body, a cover member, a rechargeable battery, and an inverter device. The main body is configured of box-shape formed with an opening. The cover member is configured to open and close the opening. The rechargeable battery is accommodated in the main body. The inverter device is configured to be accommodated in the main body. The inverter device converts a direct voltage from the battery to an alternating voltage and outputs the alternating voltage.

Growing community of inventors

Hitachinaka, Japan

Takafumi Itoh