Toshiba Assigned Three Patents

Data center dual stage drive with data striping
Kabushiki Kaisha Toshiba, Tokyo, Japan, has been assigned a patent (10,685,678) developed by Ehrlich, Richard M., Saratoga, CA, for a “data center dual stage drive with data striping.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A dual-stage servo system of a disk drive includes a first fine positioning servo system with a first microactuator that independently controls the position of a first read/write head over a first recording surface and a second fine positioning servo system with a second microactuator that independently controls the position of a second read/write head over a second recording surface. The first microactuator accesses a first data stripe while the second fine positioning servo system simultaneously accesses a second data stripe. Data can be transferred to or from the first and second data stripes simultaneously.”

The patent application was filed on September 26, 2019 (16/583,815).

Disk drive that efficiently handles random mixed-R/W command-streams
Kabushiki Kaisha Toshiba, Tokyo, Japan, has been assigned a patent (10,678,442) developed by Hara, Takeyori, Kawasaki Kanagawa, Japan, Ehrlich, Richard M., Saratoga, CA, and Weerasooriya, Siri S., Campbell, CA, for a “disk drive that efficiently handles random mixed-R/W command-streams.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Aspects of the present disclosure generally relate to storage devices and methods of operating the same. In one aspect, a storage device includes a disk, and a head configured to write data to and read data from the disk. The storage device also includes a controller configured to receive a read command in a host command queue, store the read command in a disk queue, and determine whether the host command queue is full of pending read commands, including the received read command. If the host command queue is full of pending read commands, the controller forces execution of one of the pending read commands.”

The patent application was filed on January 30, 2019 (16/262,829).

Disk and method of manufacturing disk
Kabushiki Kaisha Toshiba, Tokyo, Japan, has been assigned a patent (10,643,670) developed by Okamoto, Makoto, Kodaira Tokyo, Japan, and Sasaki, Yasutaka, Yokohama Kanagawa, Japan, for “disk device and method of manufacturing disk device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”According to one embodiment, a disk device includes a disk-shaped recording medium, a head which processes data on the recording medium, and a housing accommodating the recording medium and the head. The housing includes a base with a side wall, and a cover having a welded portion welded to the side wall by laser welding. The welded portion includes a first welded portion welded to a first region of the side wall and having weld beads with a first shape, and a second welded portion welded to a second region of the side wall and having welded beads with a second shape different from the first shape.”

The patent application was filed on February 1, 2019 (16/264,889).