公开(公告)号：JP2003303442A

公开(公告)日：2003-10-24

申请号：JP2002105479

申请日：2002-04-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： IWAMURA TAKASHI ,  SATOBI YUUICHI ,  OYAMADA MITSUAKI ,  TAMURA SHINICHIRO ,  TAMADA SAKUYA

IPC: G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording medium having a structure and the material characteristics of a recording layer suitable for a DRAW tape optical recording medium corresponding to the laser beams of the wavelength area of a shorter wavelength, 360 nm to 450 nm for instance, capable of increasing a recording density. SOLUTION: For the optical recording medium 10, the recording layer 12 is formed on a supporting body 11, the recording layer 12 is irradiated with the laser beam L for recording/reproducing information to/from the opposite side of the supporting body 11 and the information is recorded/reproduced to/ from the recording layer 12 by a reflected light intensity modulation system. For the refractive index n0 and absorption coefficient k0 before recording of the recording layer 12, the refractive index n1 and the absorption coefficient k1 after recording, Δn=n1-n0, Δk=k1-k0 and the film thickness d of the recording layer 12, one of the conditions, which are (condition 1) n0≥2.25, k0≤0.35, Δn≤-0.25, -0.15≤Δk≤0 and 30≤d≤45 nm, (condition 2) n0≤1.2, k0≤0.35, |Δk|>0.15, -0.15≤Δk≤0 and d≥55 nm, and (condition 3) 1.3≤n0≤1.8, |Δk|>0.6, |Δn| COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种光记录介质，其具有适用于对应于较短波长的波长区域的激光束的DRAW带光记录介质的结构和材料特性，360nm至 例如450nm，能够提高记录密度。 解决方案：对于光学记录介质10，记录层12形成在支撑体11上，记录层12被照射用于向/从支撑体的相对侧记录/再现信息的激光束L 信息通过反射光强调制系统被记录/从记录层12再现。 对于记录层12记录前的折射率n0和吸收系数k0，记录后的折射率n1和吸收系数k1，Δn= n1-n0，Δk= k1-k0和记录层12的膜厚d （条件1）n0≥2.25，k0≤0.35，Δn≤-0.25，-0.15≤Δk≤0和30≤d≤45nm的条件之一（条件2）n0≤1.2，k0≤0.35 ，|Δk|> 0.15，-0.15≤Δk≤0和d≥55nm，（条件3）1.3≤n0≤1.8，|Δk|> 0.6，|Δn| <0.3，1.3

公开(公告)号：JP2000339768A

公开(公告)日：2000-12-08

申请号：JP14398699

申请日：1999-05-24

Applicant: SONY CORP

Inventor： OYAMADA MITSUAKI ,  IWAMURA TAKASHI ,  TAMURA SHINICHIRO

IPC: G11B7/24 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To make it possible to combine two functions of a reproduction exclusive type and a DRAW type. SOLUTION: This optical disk 1 is provided with a first information recording body 3 having a first transparent substrate 7 on which pits in accordance with information are formed on one surface thereof and a translucent layer 9 which is formed on the first substrate, and a second information recording body 5 having a second substrate 10 on which grooves are formed on one surface, a light reflecting layer 12 which is formed on the second substrate and a recording layer 13 which consists of light absorbing material. Therein, the first information recording body and the second information recording body are bonded through an optically transparent adhesive layer 6 and a laser beam is made incident from the side of the first substrate and, thereby, the recording and reproducing is optically performed.

公开(公告)号：JPH1088123A

公开(公告)日：1998-04-07

申请号：JP24490296

申请日：1996-09-17

Applicant: SONY CORP

Inventor： OYAMADA MITSUAKI ,  TAMURA SHINICHIRO

IPC: H01L51/50 ,  C09K11/06 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To obtain the subject element excellent in brightness, durability and film formability by nipping an organic electroluminescent layer containing a hole transport material containing a specific compound between an anode and a cathode. SOLUTION: This organic electroluminescent element has a structure in which an organic electroluminescent layer containing a hole transport material containing an aromatic secondary diamine derivative of formula I or II [X, Y are each a (substituted)aryl; R1 -R11 are each H, a (substituted)alkyl, a (substituted)alkoxy, a dialkylamino, a diarylamino, a halogen], etc., is nipped between an anode and a cathode. The employment of the aromatic secondary diamine derivative high in melting point and excellent in hole transport performance gives the objective element excellent in brightness, critical puncture voltage and repeating durability.