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21. 发明专利

JPS514242A 失效
公开(公告)号：JPS514242A
公开(公告)日：1976-01-14
申请号：JP7462974
申请日：1974-06-29
申请人： KURARAY CO
发明人： ICHIMURA EIJIRO
IPC分类号： C08L23/00 , C08J3/12 , C08J3/14 , C08L7/00 , C08L21/00 , C08L23/02 , C08L101/00

22. 发明专利

JPH052151A OPTICAL LOW-PASS FILTER 失效
公开(公告)号：JPH052151A
公开(公告)日：1993-01-08
申请号：JP3369291
申请日：1991-02-01
申请人： KURARAY CO
发明人： NAKAMU SHIGEKI , FUJISAWA KATSUYA , WATANABE MUTSUJI , ICHIMURA EIJIRO
IPC分类号： G02B27/46
摘要： PURPOSE:To cut off a false signal and a false color signal effectively and to easily adhere the optical low-pass filter to a solid-state image pickup means by holding the grating surface of the low-pass filter composed of a diffraction grating and the image pickup surface of the solid-state image pickup element at an accurate interval. CONSTITUTION:Spacers 2 which hold the specific interval (b) between the diffraction surface 11 of the optical low-pass filter 1 and the image pickup surface 61 of the solid-state image pickup means 6 are united with the grating surface 11, and the end surfaces 2a of the spacers 2 on the opposite side from the grating surface 11 or the outside grating surfaces 11 of the spacers 2 are coated with an adhesive 3 which is solid at room temperature and softened and adhered as the temperature rises. The spacers 2 hold the interval (b) accurate and the adhesion is facilitated by using the adhesive 3.

23. 发明专利

JPH04234102A THIN FILM VARISTOR 失效
公开(公告)号：JPH04234102A
公开(公告)日：1992-08-21
申请号：JP41714390
申请日：1990-12-28
申请人： KURARAY CO , EMUPAIYA EAPOOTO SAABISU KK
发明人： WATANABE HISASHI , ICHIMURA EIJIRO
IPC分类号： H01C7/10
摘要： PURPOSE:To provide a thin film varistor which is easily miniaturized and exhibits a nonlinear voltage-current characteristic and whose maximum current is larger than a few mA. CONSTITUTION:An Si film 2 is formed on a substrate 1, and a film 3 of ZnO or SrTiO3 is formed thereon for the formation of a thin film varistor. Alternatively both a ZnO film 3 and an SrTiO3 film 3 are formed on the Si film 2 to constitute a thin film varistor.

24. 发明专利

JPH04166818A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH04166818A
公开(公告)日：1992-06-12
申请号：JP29404290
申请日：1990-10-30
申请人： KURARAY CO , EMPIRE AIRPORT SERVICE
发明人： WATANABE HISASHI , ICHIMURA EIJIRO
IPC分类号： G02F1/136 , G02F1/1365 , G09F9/30
摘要： PURPOSE:To suppress a crosstalk so as to attain improvement of a picture quality and largeness of capacity by applying drive voltage to a liquid crystal layer between a picture element electrode and a common electrode first when voltage, exceeding a threshold value of a non-linear 2-terminal thin film, is applied between a switching electrode layer and the common electrode. CONSTITUTION:A transparent non-linear 2-terminal thin film 15 is formed so as to cover a switching electrode layer 13, lead wire 14 and an internal surface of a semiconductor substrate 11. The non-linear 2-terminal thin film 15, having predetermined non-linear voltage-current characteristic, is a varistor film conducted when voltage of exceeding predetermined threshold value is applied. When the voltage of exceeding the threshold value of the non-linear 2-terminal thin film 15 is applied between the switching electrode layer 13 and a common electrode 18, drive voltage is applied to a liquid crystal layer 19 between a picture element electrode 16 and the common electrode 18. In this way, improvement of a picture quality and largeness of capacity can be attained by suppressing a crosstalk.

25. 发明专利

JPH0332884A OPTICAL INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPH0332884A
公开(公告)日：1991-02-13
申请号：JP16922989
申请日：1989-06-29
申请人： KURARAY CO
发明人： KAWATSUKI YOSHIHIRO , MIYAKE NOBUYUKI , ICHIMURA EIJIRO
IPC分类号： B41M5/26 , C09B23/06 , C09B23/08 , G03C1/72 , G11B7/24 , G11B7/244
摘要： PURPOSE:To obtain an optical information recording medium having properties which remain unchanged, if information is repeatedly played back by providing on a substrate a recording film containing two kinds of cyanine color of specific components with an absorption wavelength peaking within a specific range at a specific weight ratio. CONSTITUTION:A recording film provided on a substrate consists of cyanine color having an absorption wavelength peaking in the range of 300 to 690nm as shown by formula I and cyanine color having an absorption wavelength peaking in the range of 690 to 850nm as shown by formula II at a weight ratio of 10:1 to 100:1. In the formula, R , R are a C1-4 alkyl group, R , R , R , R are a hydrogen atom, a halogen atom or a C1-10 alkyl group respectively, R is a hydrogen atom, a chlorine atom or a phenyl group, and X , X are a halogen atom, and an anion selected from a group of perchloric acid, benzenesulfonic acid and toluene-sulfonic acid. A hydrogen atom placed at the meso position of a methyl chain may be substituted with a phenyl group, and n is 1 or 2.

26. 发明专利

JPH02251495A OPTICAL CARD AND PREPARATION THEREOF 失效
公开(公告)号：JPH02251495A
公开(公告)日：1990-10-09
申请号：JP7329789
申请日：1989-03-25
申请人： KURARAY CO
发明人： ICHIMURA EIJIRO , SAITO KOICHI , NAKAMU SHIGEKI , OKAMOTO KYOKO , ONO KOJI
IPC分类号： B42D15/10
摘要： PURPOSE:To obtain an optical card having high durability and excellent in mass productivity and having the good reproducibility of unevenness by forming the advance data region on a data recording surface as a recessed or protruding part and specifying the angle of inclination formed by the inclined surface constituting a V-shaped recessed or protruding part and the normal line of the data recording surface to specify the bending of the optical card. CONSTITUTION:Unevenness 5 is formed to the surface of an optical card 1 to record advance data. As the unevenness 5, recessed parts are formed or protruding parts are formed in a chevron-shape. Each of the chevron-shape protruding part 20 provided to the data region 9 present on the data recording surface 7 of the first base material 29 is provided so that the wall surface thereof is formed into an inclined surface 6 and the angle theta of inclination formed by the inclined surface 6 and the normal line A of the data recording surface 7 is formed so as to become 15-85 deg. over 50% or more of the total inclined surface. When the optical card 1 is placed on a support stand of a fulcrum-to-fulcrum distance of 20mm and load of about 15kg is applied to the optical card 1 at the almost central part between fulcrum points by a press wedge (prescribed in JIS K7203), the bending of the optical card 1 is 2mm or more. Therefore, the optical card having high durability and performing stable recording and reproduction even when accuracy forming the height or width of unevenness is slightly inferior is obtained.

27. 发明专利

JPH02189741A OPTICAL INFORMATION RECORDING MEDIUM AND PRODUCTION THEREOF 失效
公开(公告)号：JPH02189741A
公开(公告)日：1990-07-25
申请号：JP926389
申请日：1989-01-17
申请人： KURARAY CO
发明人： ICHIMURA EIJIRO , NAKAMU SHIGEKI
IPC分类号： G11B7/24 , G11B7/26
摘要： PURPOSE:To obtain the inexpensive optical information recording medium by removing a recording film in accordance with the information to be previously recorded on the optical information recording medium. CONSTITUTION:The recording film 2 is formed on a transparent plate 1a and a back plate 5 is adhered with an adhesive agent 3 to the recording film 2. Another transparent plate 1b is adhered to the transparent plate 1a. The recording film 2 (high-reflective film for a reproduction only type) of parts 7 which are pit patterns or line patterns are removed in accordance with the previously recorded information. The need for a stamper is, therefore, eliminated at the time of production and also the need for transferring and forming very small ruggedness on the resin plate is eliminated. The optical information recording medium is inexpensively obtd. at a good yield in this way.

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