Tohoku Pioneer Corporation

Other

Pioneer Electronic Corporation

Hiroshi Abiko

Takashi Ujihara

Shin Kawami

The present invention provides an acoustic apparatus which can be attached to the musical instrument without adding processing to reproduce. After the acoustic apparatus is detached, the user can enjoy playing the musical instrument itself same as before the acoustic apparatus is attached. An acoustic apparatushas a vibration generator, a support body, a locking portionand a drive circuit. The acoustic apparatusis locked to a neck holderof a stand, and a diaphragmof the vibration generatoris arranged to face a sound holeof a guitar. The drive circuitdrives the vibration generatoraccording to the inputted sound signal to resonate a sound box. Thus, rich sound can be reproduced.

Acoustic apparatus

An apparatus and a process for producing an organic electroluminescent display without deteriorating its luminous efficiency are provided. The apparatus according to the present invention, in which a metal electrode is formed by electron beam evaporation method, contains a device for preventing secondary electrons generated at an evaporation source from reaching a display board. Thus, a layer of organic electroluminescent material formed on the display board is not damaged by the secondary electrons, thereby a luminous efficiency of the layer of organic electroluminescent material can be kept high without being deteriorated.

Process for producing organic electroluminescent display and apparatus for producing the same

An organic electroluminescence element having an anode, an organic layer comprising at least one organic light emitting layer, and a cathode, wherein a face of the anode to which the organic layer is laminated is polished to prevent the generation of a leakage current, and the resultant deterioration of the current-brightness characteristic and destruction of the element.

Growing community of inventors

Yonezawa, Japan

Hiroshi Abiko