Yamaha Corporation

Yuji Sakurai

Tsutomu Watanabe

Kenji Ishibashi

Shinya Sonoda

Hisashi Nagai

Masao Sato

Taku Ueda

Hisanobu Suzuki

Akihiro Sonogi

Daisuke Haba

Naoaki Kurita

Toshiyuki Aiba

Akinori Sonogi

An audio system includes an audio apparatus, a charger, and a conveyer. The audio apparatus includes a sound receiver to receive ambient sound, and a battery. The charger charges the battery of the audio apparatus. The conveyer includes a motor to transport the audio apparatus.

Audio system and method of controlling conveyer device

A cover body () includes side surface portions () that surround a housing () of a speaker () in an installed state, and a ceiling surface portion () that covers the side surface portions (). An open portion () that can expose an operation portion () of the speaker () is formed in one of the side surface portions (), and an overhang portion () that protrudes from the surface of the side surface portion () is provided above the open portion ().

Speaker cover

A main case body of a musical instrument, which is capable of securing a degree of freedom of design. A case structure includes a lower front case, a lower rear case, and an upper case. The lower front case has a keyboard unit mounted therein. A bottom part extends in a front-rear direction of the lower front case. A key supporting part is formed such that it rises from the rear of the bottom part of the lower front case and extends in the key arrangement direction. A stopper body for stopping a free end of each key is formed such that it rises from the front of the bottom part of the lower front case and extends in the key arrangement direction. A battery case is formed by six battery terminal-associated parts arranged side by side for batteries between the key support part and the stopper body.

Main case body of musical keyboard instrument

An exterior structure for a keyboard instrument, which is capable of dramatically increasing the variation of producible types of keyboard instruments while suppressing the cost of molds. A lower case includes a front-side lower case LCf and a rear-side lower case LCr disposed rearward of the front-side lower case LCf in a side-by-side fashion. An upper case UC is disposed above the lower case. The front-side lower case LCf is fastened to the upper case UC, and the rear-side lower case LCr is fastened to the upper case UC, whereby the lower case is secured to the upper case UC.

Exterior structure for keyboard instrument

Growing community of inventors

Hamamatsu, Japan

Yuji Sakurai