公开(公告)号：JP2004086935A

公开(公告)日：2004-03-18

申请号：JP2002242454

申请日：2002-08-22

Applicant: Jeol Ltd ,  Sony Corp ,  ソニー株式会社 ,  日本電子株式会社

Inventor： INAGAKI TAKAO ,  SUZUKI AKITOSHI ,  AKI YUICHI ,  KAWASE HIROSHI ,  YAMAMOTO MASANOBU ,  DATE NAOKI ,  NORIOKA SETSUO ,  KOIZUMI MITSURU ,  NIIKURA TAKAO ,  MUTO MASAO

IPC: G03F7/20 ,  G11B7/26 ,  G11B9/10 ,  H01L21/027

Abstract: PROBLEM TO BE SOLVED: To provide an original disk exposure device and an original disk exposure method in which measurement is constantly conducted for the amount of illuminating current without interrupting exposure operation of electron beams that illuminate a base body and use is made of the electron beams whose illuminating current amount is controlled by the measurement value.
SOLUTION: The device is provided with an electron gun control section 38 which controls an electron gun 1, reflected electron detectors 8a and 8b which detect reflected electrons generated by illuminating a base body 9 with electron beams, an illuminating current amount monitoring section 40 which monitors the amount of illuminating current based on the amount of reflected electrons, a direct electron detector 10 in which electron beams by an electron beam illumination adjusting means are directly made incident and illuminating current amount is detected and an illuminating current amount detection control section 39 which controls the generation of electron beams by change information in a prescribed interval of the illuminating current amount based on at least the reflected electron amount and the illuminating current amount based on direct incident of electron beams so as to control the illuminating current amount of the exposure electron beams.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003248934A

公开(公告)日：2003-09-05

申请号：JP2002046487

申请日：2002-02-22

Applicant: SONY CORP

Inventor： KUROKAWA KOTARO ,  YAMAZAKI TAKESHI ,  YUKIMOTO TOMOMI ,  YAMAMOTO MASANOBU ,  UEDA DAISUKE

IPC: G11B7/0055 ,  G11B7/242 ,  G11B7/26 ,  G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide a method for initializing an optical recording medium, cable of reducing the unevenness in the initialization due to optical interference generated in the initialization, without deteriorating the information recording/ reproducing signal characteristic of a recording layer, in the recording medium having a plurality of optical recording layers. SOLUTION: In initializing the optical recording medium in which at least a first optical recording layer 16 and a second of optical recording layer 12 are stacked on a substrate 11 from the irradiation side with light through an intermediate layer 17, the material constituting the intermediate layer 17 has sufficient transmittance for the wavelength of recording/reproducing light LTR for the optical recording medium, and includes absorbance for the wavelength of initialization light LTI. In the process in which the initialization is performed by irradiating the first optical recording layer 16 with the initialization light LTI, the initialization is performed using a laser beam, as the initialization light, having a wavelength in the range of from 200 nm to 400 nm. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2002197671A

公开(公告)日：2002-07-12

申请号：JP2000395853

申请日：2000-12-26

Applicant: SONY CORP

Inventor： SAKO YOICHIRO ,  YAMAMOTO MASANOBU

IPC: G11B7/24 ,  G11B7/004 ,  G11B7/007 ,  G11B7/095 ,  G11B20/10 ,  G11B20/12

Abstract: PROBLEM TO BE SOLVED: To reliably read out additional data restricting the reproduction or the copy of main data without affecting the reading of the main data. SOLUTION: A recording track consists of continuous lands, main data DA are recorded by forming a pit pattern on the recording track on the basis of the main data DA, and additional data Dsub are recorded by displacing, by a prescribed amount, the pit pattern P1 formed on the synchronizing signal recording area whereon the synchronizing signal for the main data is recorded to the direction orthogonal to the center line of the recording track in the track direction. The additional data Dsub are key data to decipher the enciphering process of the main data subjected to enciphering process, or are data including copyright data.

公开(公告)号：JP2001242300A

公开(公告)日：2001-09-07

申请号：JP2000057374

申请日：2000-03-02

Applicant: SONY CORP

Inventor： AKI YUICHI ,  KONDO TAKAO ,  TAKEDA MINORU ,  YAMAMOTO MASANOBU ,  MASUHARA SHIN ,  KASHIWAGI TOSHIYUKI

IPC: G21K5/04 ,  G11B7/26 ,  G11B11/105 ,  G11B23/00 ,  G21K5/00 ,  H01J37/09 ,  H01J37/30 ,  H01J37/301 ,  H01J37/305

Abstract: PROBLEM TO BE SOLVED: To provide an electron beam irradiation device capable of avoiding effectively scattering of an electron beam, and avoiding installation of a large- scale vacuum chamber. SOLUTION: This device is equipped with a support part 4 for supporting an electron beam irradiation object 3 to which the electron beam 2 is irradiated, and an electron beam irradiation head 6 facing to the electron beam irradiation object at minute intervals and having an electron beam outgoing hole 5 for irradiating the electron beam 2 to the electron beam irradiation object 3. The device has a constitution in which an electron beam passage 20 communicating with the electron beam outgoing hole 5 is installed in the electron beam irradiation head 6, and one or more ring-shaped gas absorbing grooves 61, 62 opened to the opposite face to the electron beam irradiation object are formed on the periphery of the centered electron beam outgoing hole 5, and a vacuum pump is connected to the electron beam passage 20 and the ring-shaped gas absorbing grooves 61, 62 to keep the electron beam passage at high vacuum.

公开(公告)号：JP2001006208A

公开(公告)日：2001-01-12

申请号：JP17719599

申请日：1999-06-23

Applicant: SONY CORP ,  SONY INT EUROPE GMBH

Inventor： YAMAMOTO MASANOBU ,  YASUDA AKIO ,  SATOBI YUUICHI

IPC: G03C1/73 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/125 ,  G11B7/128 ,  G11B7/135 ,  G11B7/1365 ,  G11B7/1387 ,  G11B7/24 ,  G11B7/244 ,  G11B7/25 ,  G11B7/257

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium capable of performing a linear recording by a photon mode and free from problems from the point of view of the global environmental protection. SOLUTION: A recording material consists of an organic material whose molecular orientation is varied and which shows double reflectivity when the material is irradiated with light. For example, a recording layer consisting of a recording material made of an organic material whose molecular orientation is varied with structure change by trans-cis transition has double reflection changed with the change of molecular orientation of the organic material. A recording system utilizing the change of the molecular orientation in such an organic material has linearity and different outputs are obtained in accordance with, for example, orientation degree or orientation angle. Therefore, multi- valued recording is realizable. Further, the organic material does not contain harmful substances nor rare elements which are regulated at the disposal.

公开(公告)号：JP2000353338A

公开(公告)日：2000-12-19

申请号：JP16444699

申请日：1999-06-10

Applicant: SONY CORP

Inventor： SAKO YOICHIRO ,  IHASHI TAKAO ,  INOGUCHI TATSUYA ,  OGAWA HIROSHI ,  YAMAMOTO MASANOBU

IPC: G11B7/24038 ,  G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/09 ,  G11B7/24

Abstract: PROBLEM TO BE SOLVED: To easily and accurately select a recording layer of an optical disk having a multilayered recording layer and to accurately reproduce desired information recorded in the recording layer. SOLUTION: The optical disk 21 has first and second recording layers 24, 26 laminated on one surface of a substrate 22, and a protective layer 28 formed on the second recording layer 26 to protect the second recording layer. By controlling the reflectance of one of the first recording layer 24 and the second recording layer 26 to be higher than the reflectance of the other recording layer, the first or second recording layer 24, 26 is selected based on the difference in the quantity of light of laser beam reflected from each layer and then the information recorded in the first or second recording layer 24, 26 is reproduced.

公开(公告)号：JP2000149284A

公开(公告)日：2000-05-30

申请号：JP4236799

申请日：1999-02-19

Applicant: SONY CORP

Inventor： YAMAMOTO MASANOBU ,  KASHIWAGI TOSHIYUKI ,  IMANISHI SHINGO

IPC: G11B7/09 ,  G11B7/135 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To make obtainable a minute beam spot and to surely and to make stably performable the focus control. SOLUTION: The beam irradiation device is provided with a beam generation source 41 generating at least any one of a light beam, an electron beam and an ion beam and a convergent lens 48 converging the beam from the beam generation source 41, and is constituted of providing at least first, second focus control mechanisms 71 and 72 respectively controlling the focus device of the beam to the same lens system constituting the convergent lens so as to focus the beam to a body 40 to be irradiated by the convergent lens 48.

公开(公告)号：JP2000113509A

公开(公告)日：2000-04-21

申请号：JP28438198

申请日：1998-10-06

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI ,  YAMAMOTO MASANOBU ,  WATANABE TOSHIO ,  AOKI SADATAKA

IPC: G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide an information recording medium capable of maintaining rigidity and attaining lightweight. SOLUTION: This is an information recording medium 1 for recording and reproducing information signals, on a disk like substrate 2, at least a recording layer 4 for recording the information signals and a light transmitting layer 5 are successively formed, the medium is provided with a chucking part 6 for chucking in the center and the side of the substrate 2 opposite to the side where the recording layer 4 on which light from the light transmitting layer 5 is made incident for recording/reproducing the information signals, is formed, is formed in a tapered shape so that it gradually becomes thinner from the end of the chucking part 6 toward the outer circumferential part of the disk-like substrate 2.

公开(公告)号：JP2000082243A

公开(公告)日：2000-03-21

申请号：JP25134798

申请日：1998-09-04

Applicant: SONY CORP

Inventor： ARAKAWA NORIYUKI ,  YAMAMOTO MASANOBU ,  MASUHARA SHIN ,  FURUKI MOTOHIRO

IPC: G11B7/26 ,  B29C45/26

Abstract: PROBLEM TO BE SOLVED: To make it possible to produce a superflat disk having decreased noises, such as focus errors, by utilizing a sheet stamper obtd. by using a mastering process generally used for optical disks as it is. SOLUTION: This apparatus 10 for production produces the disk-like information recording medium 2 having information recording parts by injection molding in metal molds. The apparatus has the stamper 22 of the thin type metal formed with rugged signals by the mastering process and a reinforcing disk 1 for reinforcing the stamper 22 joined by a low melting alloy to the stamper 22.

公开(公告)号：JPH1173685A

公开(公告)日：1999-03-16

申请号：JP23497897

申请日：1997-08-29

Applicant: SONY CORP

Inventor： IMANISHI SHINGO ,  KASHIWAGI TOSHIYUKI ,  YAMAMOTO MASANOBU

IPC: G11B7/24 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B7/26 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30

Abstract: PROBLEM TO BE SOLVED: To enable a control signal to be inserted into a slight area and to enable a control signal, for example, a clock signal to be detected in a state that a jitter is few by providing a groove and/or a land with interrupted parts at a prescribed interval and detecting the control signal with these interrupted parts. SOLUTION: A mirror mark part M is formed by dividing a groove G in the middle. This mirror mark part M is not made to a recessed part but to a flat part. This part becomes interrupted parts of the groove G. A tan P-P signal (A-B) shown by a line OG is detected by irradiating the center of the groove G made as a track center with a laser beam and detecting the reflected light with photodetectors bisected in the scanning direction. Similarly, the tan P-P signal (A-B) shown by a line OL is detected by irradiating the center of the land L made as a track center with the laser beam and detecting the reflected light with photodetctors bisected in the scanning direction. Thus, these signals can be utilized as a control signal.