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1. 发明专利

DE69422079T2 未知
公开(公告)号：DE69422079T2
公开(公告)日：2000-05-25
申请号：DE69422079
申请日：1994-04-05
申请人： CANON KK
发明人： TAKADA KUNIO , HONGU KAZUOKI , KOGANEI AKIO , MIYAKOSHI TOSHIMORI , ADACHI TOSHIO
IPC分类号： C23C16/507 , G11B7/26 , G11B11/105 , C23C16/30 , C23C16/44 , C23C16/50 , G11B5/84 , G11B7/24 , G11B11/10 , H01J37/32 , H01L21/205

2. 发明专利

DE69419968D1 未知
公开(公告)号：DE69419968D1
公开(公告)日：1999-09-16
申请号：DE69419968
申请日：1994-05-26
申请人： CANON KK
发明人： TAKADA KUNIO , SUZUKI NOBUMASA , MIYAKOSHI TOSHIMORI
IPC分类号： C23C16/511 , G11B7/24 , G11B7/26 , G11B11/105

3. 发明专利

DE69422079D1 未知
公开(公告)号：DE69422079D1
公开(公告)日：2000-01-20
申请号：DE69422079
申请日：1994-04-05
申请人： CANON KK
发明人： TAKADA KUNIO , HONGU KAZUOKI , KOGANEI AKIO , MIYAKOSHI TOSHIMORI , ADACHI TOSHIO
IPC分类号： C23C16/507 , G11B7/26 , G11B11/105 , C23C16/30 , C23C16/44 , C23C16/50 , G11B5/84 , G11B7/24 , G11B11/10 , H01J37/32 , H01L21/205

4. 发明专利

DE3888857D1 未知
公开(公告)号：DE3888857D1
公开(公告)日：1994-05-11
申请号：DE3888857
申请日：1988-01-29
申请人： CANON KK
发明人： TAKADA KUNIO , OKUDA TERUAKI
IPC分类号： B29C45/00 , B29C45/26 , B29C71/02 , B29L11/00 , G11B7/253 , G11B7/26 , G11B7/24
摘要： In a process for producing a substrate for optical disks, first a disk-shaped substrate is formed with polycarbonate with such gradient distribution of double refraction that the value of double refraction is in a range from -10 to -30 nm in the vicinity of the external periphery of the substrate and is in a range from +10 to +30 nm in the vicinity of the center thereof, and then thus formed substrate is annealed.

5. 发明专利

DE69419968T2 未知
公开(公告)号：DE69419968T2
公开(公告)日：2000-04-06
申请号：DE69419968
申请日：1994-05-26
申请人： CANON KK
发明人： TAKADA KUNIO , SUZUKI NOBUMASA , MIYAKOSHI TOSHIMORI
IPC分类号： C23C16/511 , G11B7/24 , G11B7/26 , G11B11/105

6. 发明专利

DE3888857T2 未知
公开(公告)号：DE3888857T2
公开(公告)日：1994-08-04
申请号：DE3888857
申请日：1988-01-29
申请人： CANON KK
发明人： TAKADA KUNIO , OKUDA TERUAKI
IPC分类号： B29C45/00 , B29C45/26 , B29C71/02 , B29L11/00 , G11B7/253 , G11B7/26 , G11B7/24
摘要： In a process for producing a substrate for optical disks, first a disk-shaped substrate is formed with polycarbonate with such gradient distribution of double refraction that the value of double refraction is in a range from -10 to -30 nm in the vicinity of the external periphery of the substrate and is in a range from +10 to +30 nm in the vicinity of the center thereof, and then thus formed substrate is annealed.

7. 发明专利

JPH10208554A TRANSPARENT CONDUCTIVE FILM AND LIQUID CRYSTAL ELEMENT USING THE SAME 失效
公开(公告)号：JPH10208554A
公开(公告)日：1998-08-07
申请号：JP997197
申请日：1997-01-23
申请人： CANON KK
发明人： TAKADA KUNIO
IPC分类号： G02F1/1343 , B32B7/02 , B32B9/00 , H01B5/14
摘要： PROBLEM TO BE SOLVED: To enable patterning once, obtain wiring resistance and beam transmission rate applicable to a large area liquid crystal display in a conventional film thickness, and restrain display faults due to alignment abnormality of liquid crystal by sequentially laminating a tin-added indium oxide (ITO) film, high-conductivity metal film, ITO film, high-conductivity metal film, and ITO film on a substrate. SOLUTION: A transparent conductive film of this invention in which three- layered ITO films and two-layered high-conductivity metal film are alternately laminated on a glass substrate or the like has a film thickness of about 150nm, wiring resistance of about 20kΩ, and beam transmission rate in a visible region of 80% or more. When this is a transparent electrode of a liquid crystal element, there is less occurrence of liquid crystal alignment abnormality due to influence of a step. High-conductivity metal films of second and fourth layers are suitable to use of silver from the viewpoint of cost efficiency, corrosion resistance, and conductivity. In addition, a total of the film thickness of the second and fourth layers is 10 to 15nm, thereby performance required by a 15 inch-class large area liquid crystal display is realized.

8. 发明专利

JPH09190648A OPTICAL RECORDING MEDIUM AND ITS PRODUCTION 失效
公开(公告)号：JPH09190648A
公开(公告)日：1997-07-22
申请号：JP237996
申请日：1996-01-10
申请人： CANON KK
发明人： TAKADA KUNIO , KOGANEI AKIO , MOTOMIYA KAZUOKI
IPC分类号： C08J7/00 , B32B27/36 , C23C16/50 , G11B5/66 , G11B5/84 , G11B5/85 , G11B5/851 , G11B7/24 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To produce an optical recording medium having excellent recording and reproducing characteristics at a high yield and a low cost. SOLUTION: This recording medium has a hard coating layer 32, at least a dielectric layer 33, a recording layer 34 and a protective layer 35 on the groove surface side of the substrate. At this time, the substrate 31 is introduced into a vacuum chamber 3 right after the substrate is molded by an injection molding method where the hard coating layer 32 is formed on the substrate surface by using a plasma CVD method. The respective layers on the groove surface side of the substrate are formed.

9. 发明专利

JPH09115199A PRODUCTION OF OPTICAL INFORMATION RECORDING MEDIUM AND APPARATUS FOR THE PRODUCTION 失效
公开(公告)号：JPH09115199A
公开(公告)日：1997-05-02
申请号：JP26726395
申请日：1995-10-16
申请人： CANON KK
发明人： TAKADA KUNIO , KOGANEI AKIO , MOTOMIYA KAZUOKI
IPC分类号： G11B11/10 , G11B11/105
摘要： PROBLEM TO BE SOLVED: To decrease the number of sliding times of the driving parts in a vacuum film forming chamber, to prevent the lowering of working rate by trouble, to prolong the life of consumable parts and to reduce the running cost by enabling the treatment of the same production quantity as heretofore with the number of vacuum transportation times half the number of times heretofore. SOLUTION: A carrier constituting body 10 is formed out of disk substrates, inner peripheral masks and carriers in common use as outer peripheral masks. The two carrier constituting bodies 10 are combined to pinch a work transporting means 9 (for example, a driving belt, wire, shutter transport bar, etc.) so that their non-film forming surfaces of the constituting bodies face each other at the time of assembling the carrier constituting body 10 to form the composite carrier constituting body 10. Such composite carrier constituting body 10 is charged into the vacuum film forming chamber, where the films are formed on two sheets of the disk substrates while these substrates are simultaneously vacuum transported.

10. 发明专利

JPH08290482A MANUFACTURE OF OPTICAL DISK 失效
公开(公告)号：JPH08290482A
公开(公告)日：1996-11-05
申请号：JP14019496
申请日：1996-06-03
申请人： CANON KK
发明人： TAKADA KUNIO , OKUDA KOSHO
IPC分类号： B29C71/02 , B29C45/00 , B29C45/26 , B29C45/73 , B29C69/00 , B29L17/00 , G11B7/26
摘要： PURPOSE: To provide a manufacturing method for an optical disk base of long- term stability and heat resistance and provided with almost zero birefringence on all over the whole surface of the disk even after annealing. CONSTITUTION: This manufacturing method consists of a process of molding a disk-shaped or doughnut-shaped plastic base formed by using the injection molding method and a process of annealing the plastic base at the temperature lower than the glass transition temperature of the plastic base by 10 deg.-60 deg.C for 1-6 hours. In the molding process, the plastic base providing the birefringenece distribution in the radius direction is uniformized after annealing by adjusting the temperature of a mold.

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