Pioneer Corporation

Pioneer Electronic Corporation

Takashi Nakai

Jun Suzuki

Takashi Nakamura

Ryuichiro Yoshimura

Yuji Ikedo

Akio Fukushima

Yusuke Akama

Katsumi Ishii

Shogo Sato

Hidenori Nakagawa

Kenichi Oono

Yoshitake Shimada

Ken Okamura

Yuichi Mizuuchi

Naoki Yamada

Masayuki Saitoh

Tomonori Nakada

Hajime Ishizuka

Eiji Konosu

Kazumasa Nakamura

Tak Kai

Shinzo Kawakami

Takehiro Otsuki

Hiroki Yamaguchi

Takayuki Yamamoto

Kouji Harimoto

In an optical disk manufacturable by a conventional recording medium manufacturing method and that is capable of performing recording with an information recording apparatus used to perform recording on conventional recording mediums, and a data recording apparatus for recording contents data, an optical disk has a structure in which a first substrate and a second substrate are bonded together, the first substrate is provided with a recording layer in which contents data is recorded, and the second substrate is provided with a visual information recording layer in which information enabling visual recognition of, for example, the contents of contents data or a title of the contents data is recorded as visual information.

Optical recording medium and data recording device

A pickup apparatus capable of omitting an actuator cover and reducing the dimensions thereof, and a method of manufacturing the same. This apparatus is formed of an actuator unit in which a movable unit made by fixing printed board coils on both side surfaces of an objective lens-containing lens holder is supported movably on four wire-form elastic members fixed to an actuator base, and a suspension base which is provided with a pair of yokes to which a pair of magnets disposed in a mutually opposed state are fixed with a predetermined width of magnetic space left therebetween, and which has standing portions. A range of a movement in a focusing direction of the movable unit is restricted by inserting stopper members into insert holes of the standing portions.

Pickup apparatus and method of manufacturing the same

A disc player is provided with: a turn table ( ) for rotating an information record disc, which is placed on the turn table; a clamper ( ) for holding the information record disc between the clamper and the turn table; a chassis ( ) on which at least one of the clamper and the turn table is mounted and which has a rotation shaft ( ) parallel to a main surface of the information record disc held between the clamper and the turn table; a driving device ( ) for transmitting a driving force to the chassis so as to rotate the chassis with the rotation shaft at a rotation axis; and an optical pickup ( ) for at least reading a signal from the information record disc held between the clamper and the turn table while the disc is rotated on the turn table. A gap (W) is prepared between the rotation shaft and a bearing ( ) for the rotation shaft in a direction parallel to the main surface such that the rotation shaft has a play in the direction parallel to the main surface.

Disc player

A disk carrier mechanism for carrying a disk between an inserting port for inserting the disk into a housing and a reproducing position in which said disk is held on a turn-table for reproduction. A pair of carrier levers swinging within a plane parallel to a major surface of the disk are respectively provided with abutting members each abutting onto a peripheral edge section of the disk for enabling holding of the disk therewith in cooperation with each other. The abutting members are respectively provided with inclined surfaces respectively along which the disk can be moved in a direction perpendicular to the major surface of the disk when the carrier leaves swing to approach the peripheral edge sections of the disk or to leave left away from the disk.

Disk carrier with levers holding and carrying a disk in horizontal direction

Growing community of inventors

Tokorozawa, Japan

Takashi Nakai