Fujitsu Corporation

Nec Corporation

Yokohama City University

Chiome Beoscience Inc.

Yokohama City University and Chiome Bioscience Inc.

Chiome Bioscience Inc.

Shuichi Hashimoto

Naoki Takahashi

Tatsuhiko Kosugi

Yoshiyuki Kagami

Tohru Shinohara

Nobuyuki Suzuki

Susumu Yoshida

Takeyori Hara

Keiji Aruga

Koji Murakami

Susumu Hasegawa

Hideki Ohmori

Hidetaka Seo

Ryuki Kubohara

Yukihiro Uematsu

Yoshio Goshima

Kazuhiko Takaishi

Hiroshi Tsurumi

Tomoyoshi Yamada

Masashi Fujimoto

Isamu Tomita

Hitomi Sano

Naoya Yamashita

Yukie Sasakura

Fumio Nakamura

Yuichi Taroda

Yoshihiro Hashimura

Toru Shinohara

Kunihiko Kasama

Takahisa Ueno

Atsushi Sawada

Kohei Takamatsu

Toshio Negoro

Aki Takesue

Takashi Yabuki

Tomoaki Uchiki

Kenjiro Asagoshi

Shunsuke Miyai

The present invention mainly addresses the problem of providing an antibody against semaphorin 3A protein, said antibody enabling effective prevention and/or treatment of a disease, in which Sema 3A protein participates, such as a neurodegenerative disease, autoimmune disease, inflammatory disease, cancer, infectious disease, etc. or disseminated intravascular coagulation syndrome. An anti-Sema 3A antibody comprising CDRs having specific amino acid sequences (SEQ ID NOS: 1-6, 60-62, 64-66, 68-70, 72-74, 76-78, 80-82, 84-86 and 88-90) enables effective prevention and/or treatment of a disease, in which Sema 3A protein participates, such as a neurodegenerative disease, autoimmune disease, inflammatory disease, cancer, infectious disease, etc. or disseminated intravascular coagulation syndrome and, therefore, remarkably ameliorates symptoms associated with such a disease.

Anti-semaphorin 3A antibody and treatment of Alzheimer's disease and inflammatory immune diseases using same

An eccentricity correction data recording method, a disk-shaped recording medium, a head position control method and an information recording and reproducing apparatus are disclosed for effective eccentricity correction on cylinders of a disk-shaped recording medium. The eccentricity correction data recording method is for position control over a recording and reproducing head on a disk-shaped recording medium having at least one user data recording area to record user data, the method including the step of recording the eccentricity correction data in a user data recording area.

Eccentricity correction data recording method and recording medium having eccentricity correction data

A resonance-frequency measuring method is used for measuring a resonance frequency of an information recording/reproducing device reproducing information recorded on a medium by driving a mechanism unit. The resonance-frequency measuring method includes the measuring step of applying sine-wave oscillations at different frequencies one by one to the mechanism unit, and counting the number of times information reproduced upon application of each of the sine-wave oscillations differs from information indicating an aimed location, and the resonance-frequency determining step of determining the resonance frequency according to the number of times counted in the measuring step.

Resonance-frequency measuring method determining a resonance frequency by counting the number of off-track occurrences

There is provided a head control method controlling move of a head on a discoidal recording medium including the steps of: partitioning the discoidal recording medium which has position information recorded thereon at radially equal spacing into a plurality of zones; and demodulating the position information using a coefficient set for each of the zones.

Head control method and recording apparatus

A resonance-frequency measuring method is used for measuring a resonance frequency of an information recording/reproducing device reproducing information recorded on a medium by driving a mechanism unit. The resonance-frequency measuring method comprises the measuring step of applying sine-wave oscillations at different frequencies one by one to the mechanism unit, and counting the number of times information reproduced upon application of each of the sine-wave oscillations differs from information indicating an aimed location, and the resonance-frequency determining step of determining the resonance frequency according to the number of times counted in the measuring step.

A writing unit divides a sync byte into two sync bytes of a first sync byte and a second sync byte and also divides write data into two data of first data and second data and writes them. When a first sync byte pattern is detected, a reading unit demodulates the subsequent first data, second data, and an error detection correction code. When the first sync byte pattern SB1 is not detected but a second sync byte pattern SB2 is detected, the subsequent second data and error detection correction code are demodulated and the first data is reconstructed by the error detection correction code.

Magnetic disk apparatus and magnetic disk medium

Head position control is implemented in a disk drive for the case in which a disk is assembled into the disk drive after a precise track is recorded onto it using an external apparatus, which is capable of high-speed access even if there is eccentricity between a track defined by servo information and the center of rotation of the track. Two phase servo bursts consisting of servo information are recorded onto each of the servo information regions of a disk surface, in mutual alternation, the strength ratio between signals detected from these two phase servo bursts being used to determine to which side the head is displaced. By performing control so that this strength ratio is a prescribed value at each angular position, control is achieved so that the head moves along a circular path of rotation, even if there is eccentricity in the servo circular path defined by the recorded servo information with respect to the center of rotation.

Head position control for a disk drive which performs recording about

In a mask including an optical shield layer formed on a transparent substrate, the light transmittance of the shield layer is changed in accordance with the density of patterns of the shield layer or the thickness of a photoresist layer on a semiconductor substrate.

Mask including optical shield layer having variable light transmittance

A head positioning method controls a position of a servo head from a first arbitrary track position on a disk to a second arbitrary track position on the disk during a seek operation, where the servo head reads a servo signal from tracks formed on the disk. The head positioning method comprises the steps of setting an moving quantity of the servo head, controlling velocity and position of the servo head depending on the initial moving quantity and a difference between a present track position of the servo head and the second arbitrary track position, and ending the seek operation after a predetermined access time elapses from a start of the seek operation when an actual access time is shorter than the predetermined access time. The predetermined access time is preset depending on the initial moving quantity, and the actual access time is a time it actually takes for the servo head to move from the first arbitrary track position to the second arbitrary track position.

Method and circuit for controlling head position

Disclosed is a head positioning control system for disk drives which enables fast access even when eccentricities of tracks defined with servo control information relative to the center of rotation are different among disks assembled after the servo control information is externally written on the respective disks. The head positioning control system is adapted to a disk drive comprising a plurality of disks each having a record surface on which servo control information indicating positions in a radial direction on a disk is recorded, and heads associated with the plurality of disk record surfaces and designed to detect information stored on the plurality of disk record surfaces. The servo control information includes position information in the radial direction on each disk record surface and defines servo-control circular trajectories. In addition to known components, the head positioning control system includes an eccentric information memory for storing eccentric information concerning eccentricities of servo-control circular trajectories on disk record surfaces relative to the center of rotation, and an optimal processing unit that when object disk record surfaces are changed according to an instructed target address, executes processing, which requires the shortest time for accessing a target address, on the basis of eccentric information.

Head positioning control system for disk drives each formed by

A high-density disk unit and disk medium are disclosed. Track ID information is not placed in a servo area, or if some track ID information is placed therein, a necessary minimum is placed. The servo area is thus reduced in order to improve formatting efficiency. A data side of a disk medium is divided into a servo area and a data area in units of a sector. A track ID area in which track information is recorded is defined at the start position of the data area immediately following the servo area. A formatter circuit allows a write data modulation circuit to write track information in the track ID area during track formatting. For writing in the data area, the formatter circuit allows a read data demodulation circuit to read data from the track ID area. Track information is thus detected, and writing tracking is assured.

High density disk unit and disk medium

Head positioning control apparatus of disk drive and method of

A method of demodulating head position in a disk apparatus in which a head is moved toward a target cylinder using a position detection signal that has been recorded on a disk medium. This method includes the steps of: predicting, at a current sampling point, the position of the head at the next sampling point; moving the head by instructing a current for a motor based upon the predicted position; obtaining a position deviation which indicates deviation from the predicted position to the head position at the next sampling point by reading the position detection signal that has been recorded on the disk medium; demodulating the head position at the next sampling point using the position deviation signal and the predicted position; predicting position of the head at an immediately following sampling point using a value obtained by outputting the difference (traveling velocity) between predicted positions at neighboring sampling points via a first-order low-pass filter, the predicted position, a difference between the predicted position and the head position and the value of the current instructed for the motor, and instructing a current for the motor based upon the predicted position.

Head position demodulating method

A photo-mask has a main pattern implemented by a photo-shield strip and an auxiliary pattern implemented by semi-transparent strips, and the photo-shield strip is equal in width to the semi-transparent strips so as to allow the photo-shield strip to be close to the resolution limit without destroy of the effects of the auxiliary pattern.

Photo-mask used in aligner for exactly transferring main pattern

Growing community of inventors

Kawasaki, Japan

Shuichi Hashimoto