Hitachi, Ltd.

Renesas Technology Corp.

Hitachi Keiyo Engineering Co., Ltd.

Solid State Storage Solutions LLC

Other

Hitachi Ulsi Engineering Corp.

S4, Inc.

Hitachi Engineering Co., Ltd.

Hitachi Ulsi

Hajime Yamagami

Takashi Tsunehiro

Kunihiro Katayama

Kenichi Kaki

Takeshi Furuno

Yoshihiro Hayashi

Kouichi Terada

Takashi Totsuka

Takeshi Suzuki

Takeshi Wada

Jun Kitahara

Tsunehiro Tobita

Ryuichi Hattori

Yukihiro Seki

Takashi Kikuchi

Takao Okubo

Masamichi Kishi

Shigeru Kadowaki

Manabu Saito

Yosio Takaya

Kenichi Saito

Tsuyoshi Nakagawa

Masahito Suzuki

Yasushi Neho

Kenichi Nagashima

Masato Kurita

A semiconductor disk wherein a flash memory into which data is rewritten in block unit is employed as a storage medium, the semiconductor disk including a data memory in which file data are stored, a substitutive memory which substitutes for blocks of errors in the data memory, an error memory in which error information of the data memory are stored, and a memory controller which reads data out of, writes data into and erases data from the data memory, the substitutive memory and the error memory. Since the write errors of the flash memory can be remedied, the service life of the semiconductor disk can be increased.

Storage device employing a flash memory

In an information processing apparatus such as a space-saving type personal computer having a liquid-cooling type cooling system, the presence of a cooling liquid, the presence of a frozen state of the cooling liquid and the temperature of the cooling liquid are detected. When a freeze of the cooling liquid is detected, a CPU is throttled down to defrost the cooling liquid, or the cooling liquid is heated to be prevented from being frozen. Alternatively, a warning of detection of a freeze may be displayed. Alternatively, activation of the system may be stopped or operation of the system may be interrupted. By such measures, system failure is prevented from being caused by leaking, shortage, freezing, etc. of the cooling liquid.

Method of controlling cooling system for a personal computer and personal computer

Growing community of inventors

Yokohama, Japan

Hajime Yamagami