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Featured researches published by Eiichi Hanakawa.


Optical data storage '98. Conference | 1998

Loading mechanism of DVD-RAM drive

Akira Kurozuka; Shinichi Maeda; Kohzoh Ezawa; Eiichi Hanakawa

We have developed a loading mechanism of DVD-RAM drive for DVD-RAM, PD, DVD-ROM, and CDs. To load both a cartridge and a bare disc, a pair of disc holding members is equipped in a cartridge holder. The front half of the cartridge holder is drawn out of the drive, and a cartridge or a disc is inserted from the front, and so the drive can be used in both horizontal and vertical setup directions. The drive mechanism height is minimized to 31.6 mm by pulling the cartridge holder into the drive after opening the cartridge shutter. It provides enough space for the electric circuit board below the mechanism in the height of 41.3 mm of the half height drive. When a disc is inserted, the cartridge holder is pulled into the drive without pushing the cartridge holder using sensors in the cartridge holder.


Archive | 2000

Disk loading device and disk adaptor

Akira Kurozuka; Eiichi Hanakawa; Shinichi Maeda; Kohzoh Ezawa


Archive | 1995

Disk cartridge having a locking means and cartridge coupling means

Eiichi Hanakawa; Akira Kurozuka; Hiroyuki Takeuchi; Hironori Okazawa; Yoshikazu Goto


Archive | 1993

Optical disk device and disk cartridge

Eiichi Hanakawa; Akira Kurozuka; 栄一 花川; 章 黒塚


Archive | 2001

Optical disk, substrate of the same, and mold for forming the substrate

Kiyoshi Uchida; Akira Kurozuka; Tomio Yamamoto; Eiichi Hanakawa


Archive | 1985

Tape cassette and cassette recorder using the same

Tetsuji Yoshii; Eiichi Hanakawa; Yuji Nakamura; Shuji Iwasaki; Teruyuki Takizawa


Archive | 1999

Method and apparatus for using a disk cartridge with pull-out type case

Eiichi Hanakawa; Akira Kurozuka; Hiroyuki Takeuchi; Hironori Okazawa; Yoshikazu Goto


Archive | 1998

Disc loading apparatus and adapter for discs

Akira Kurozuka; Eiichi Hanakawa; Shinichi Maeda; Kohzoh Ezawa


Archive | 1999

Disk cartridge, disk drive and disk changer apparatus using the disk cartridge, and method for handling the disk cartridge

Eiichi Hanakawa; Akira Kurozuka; Hiroyuki Takeuchi; Hironori Okazawa; Yoshikazu Goto


Archive | 2003

Disk drive unit with part of feed motor coinciding in height with loaded disk cartridge

Akira Kurozuka; Eiichi Hanakawa; Hitoshi Minabe; Tomio Yamamoto

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