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1. 发明专利

JPH09145948A OPTICAL FIBER FIXATION MEMBER AND ITS MANUFACTURE 失效
公开(公告)号：JPH09145948A
公开(公告)日：1997-06-06
申请号：JP30427095
申请日：1995-11-22
申请人： COPAL CO LTD
发明人： OTSU NOBUYUKI , KUBO MASARU
IPC分类号： G02B6/24 , G02B6/40
摘要： PROBLEM TO BE SOLVED: To improve the yield of the fixation member which fixes optical fibers in V grooves and connects them by previously forming a thin set layer on the top surface of a low-melting-point glass which can deform at a specific temperature and machining the V grooves by a press at the same time. SOLUTION: A V groove block 1 made of a plate type low-melting-point glass material which is cut into a specific size deforms plastically in conformity with the pattern part 3a of an upper die part 3 which is operated with a specific pressure. Thin film set layers 2 are previously formed by vapor deposition, etc., on the top and reverse surfaces of the V groove block 1. The V groove block 1 after being set on the lower die part 4 of a press mold is raised in temperature up to 400-700 deg.C in a relatively short time and while this temperature is maintained, the V groove die part 3a of the upper die part 3 is pressed against the thin film set layer 2 of the V groove block 1. Then, the temperature is lowered with a temperature gradient more gentle than the temperature rise gradient. Consequently, releasing property is improved to lower a defective generation rate and improve the yield.

2. 发明专利

JPH0834627A GLASS MOLDING DIE 失效
公开(公告)号：JPH0834627A
公开(公告)日：1996-02-06
申请号：JP17538994
申请日：1994-07-27
申请人： COPAL CO LTD
发明人： OTSU NOBUYUKI
IPC分类号： G02B3/02 , C03B11/00 , C03B11/08
摘要： PURPOSE:To easily and surely release the glass molded article stuck to the press-forming face of a molding die from the die in the cooling process after molding. CONSTITUTION:A glass molding die 21 is provided with an upper die member 22 having a protrusion 24a on its press-forming face 24 and another die member 25 having a recess 25a opposed to the protrusion 24a on its press-forming face 25, and a concave glass molded article 28 is formed between the protrusion 24a and recess 25a. The molding die 21 has a first press-forming face 22a-1 to press the region of the effective diameter of the molded article 28 and a second press-forming face 22b-1 to press the region outside the effective diameter of the article 28, and the columnar first die 22a constituting the first press- forming face 22a-1 is fitted in the cylindrical second die 22b constituting the second press-forming face 22b-1. The first die 22a is made of a material having a larger heat contraction coefficient than the second die 22b.

3. 发明专利

JPH0834626A MOLD FOR GLASS MOLDING 失效
公开(公告)号：JPH0834626A
公开(公告)日：1996-02-06
申请号：JP17538194
申请日：1994-07-27
申请人： COPAL CO LTD
发明人： OTSU NOBUYUKI
IPC分类号： C03B40/02 , C03B11/00 , C03B11/08
摘要： PURPOSE:To surely fix a mold main body consisting of a glass-like carboneceous material of a mold for a glass molding and a base material consisting of the carbonaceous material. CONSTITUTION:A lower die member 21 of the mold for the glass molding is constituted by sticking the mold main body 21b consisting of the glass-like carboneceous material in which pores are not incorporated substantially and having a press molding surface to an adhesive surface of the base material 21a consisting of carboneceous material through a carbon based adhesive 22. Coefficients of thermal expansion of the base material 21a, the mold main body 21b and the carbon based adhesive 22 are nearly equal.

4. 发明专利

JPH06287023A MOLD FOR GLASS FORMING 失效
公开(公告)号：JPH06287023A
公开(公告)日：1994-10-11
申请号：JP9518193
申请日：1993-03-31
申请人： COPAL CO LTD
发明人： DOI YUZURU , OTSU NOBUYUKI
IPC分类号： C03B11/08
摘要： PURPOSE:To provide a mold for glass forming giving a formed glass lens having uniform thickness and free from eccentricity. CONSTITUTION:The mold is composed of a cavity 12, a mold plate 13 to hold the cavity in a state slidable in the direction of the cavity face and a die plate 9A attached to the mold plate opposite to the cavity face of the cavity. A glass material is placed between a pair of oppositely placed upper and lower cavity faces and pressed in hot state to form a glass lens. The glass forming mold having the above construction is provided with a spring 30A to force the cavity toward the die plate.

5. 发明专利

JPH01303773A LAMINATED ELEMENT 失效
公开(公告)号：JPH01303773A
公开(公告)日：1989-12-07
申请号：JP13283588
申请日：1988-06-01
申请人： COPAL CO LTD
发明人： OTSU NOBUYUKI , KITAZAWA OSAMU , KIMURA YOSHIYUKI
IPC分类号： H01L43/08
摘要： PURPOSE:Not only to prevent pinholes from enlarging in size due to the corrosion of a metal layer but also obtain a laminated element with no defective connection by a method wherein a corrosion preventing layer high in corrosion resistance is formed on a metal layer. CONSTITUTION:A laminated element is composed of a substrate 10, a first metal layer 14 formed on the substrate 10, and a second metal layer 20, whose ionization energy is different from that of the first metal layer 14, formed on the first metal layer 14, where a corrosion preventing layer 22 provided with a corrosion resistant property is formed on the second metal layer 20. And, the laminated element is a magnetoresistance element, where the first petal layer 14 is formed of a ferromagnetic material. Therefore, the metal layer 20 is protected against corrosion when a photoresist used for the formation of a pattern of the metal layer 20 is separated off. By these process, pinholes are prevented from enlarging in size and the laminated element free from the defective connection can be obtained.

6. 发明专利

JPS6213366A MANUFACTURE OF THERMAL HEAD 失效
公开(公告)号：JPS6213366A
公开(公告)日：1987-01-22
申请号：JP15330985
申请日：1985-07-11
申请人： COPAL CO LTD
发明人： TSUKADA TAKESHI , TANAKA SHIGEAKI , OTSU NOBUYUKI
IPC分类号： B41J2/335 , H01C17/06 , H01L49/00 , H01L49/02
摘要： PURPOSE:To obtain a thermal head easy to manufacture wherein the outer profile of a heating resistor is substantially rectilinearly shaped to greatly contribute to enhancing printing quality, by a method wherein of a fired heating resistor, a part lying on the outside of a small width groove window is stripped off. CONSTITUTION:In order that parts 4a to be removed can be easily removed in a continuous form by an adhesive tape, a resistor paste is so applied that the average width W2 of the part extending to the outside of the width of the groove window 6a of the heating resistor 4 is preferably not less than 0.05mm. It is suitable that the film thickness of the resistor 4 is not more than 20mum, and a sufficient effect is not obtaind if the thickness of a thin photosensi tive resin film 6 is not more than 0.5mum. Where the thickness of the resistor 4 is, for example, 5-#6mm, if the thickness of the film 6 is more than 2mum, and end part of a main body part of the resistor 4 to be left might be removed together with the film 6 by a 'ligt-off' action. After firing, the part 4a to be removed is stipped off by the adhesive tape, whereby a belt form heating resis tor 4 having substantially rectilinear major sides is provided.

7. 发明专利

JPH11160562A OPTICAL FIBER FIXING MEMBER AND MANUFACTURE THEREFOR 失效
公开(公告)号：JPH11160562A
公开(公告)日：1999-06-18
申请号：JP32162097
申请日：1997-11-21
申请人： COPAL CO LTD
发明人： OTSU NOBUYUKI , NISHIYAMA TAKAAKI
IPC分类号： G02B6/24 , G02B6/40
摘要： PROBLEM TO BE SOLVED: To measure a pitch between V grooves after formation by using the shape measurement device of a non-contact type by the reflected light of a laser beam or the like by simultaneously press-working a flat part at a dent bottom part between the V grooves at the time of press-working the V grooves by using a V groove die. SOLUTION: At the V groove block 1 of a low fusing point glass material which is this optical fiber fixing member, a thin film hardened layer 2 is formed beforehand. The V groove block 1 is set on the lower die part of a press die and a temperature is raised from 400 to 700 deg.C. The upper die part 3 of the press die provided with the flat part 3a-1 on the peak part of a V groove die part 3a is press-worked on the V groove block 1 by a prescribed pressure. The V groove and the flat part 2a-1 of the dent bottom part of the V groove are simultaneously formed. By performing scanning by the laser beam so as to cross the formed V groove block 1, the rectangular wave K1 of a width corresponding to a width dimension is obtained only at the flat part 2a-1 and the pitch P between the flat parts 2a-1 is measured.

8. 发明专利

JPH06321560A PRESS-FORMING APPARATUS FOR GLASS MOLD 失效
公开(公告)号：JPH06321560A
公开(公告)日：1994-11-22
申请号：JP11165093
申请日：1993-05-13
申请人： COPAL CO LTD
发明人： OTSU NOBUYUKI , DOI YUZURU
IPC分类号： C03B11/08 , C03B11/12
摘要： PURPOSE:To dispense with the expensive apparatus for the control of temperature and provide a press-forming apparatus for glass mold capable of eliminating the temperature difference between an upper mold and a lower mold at a reduced cost. CONSTITUTION:Opposite faces 10a, 13a of an upper mold 10 and a lower mold 13 are closely contacted with each other in a forming chamber 1 before starting the pressing work and the temperature difference between the upper mold 10 and the lower mold 13 is eliminated taking advantage of heat-exchange action. After the above procedure, the upper mold 10 is pressed against the lower mold 13 under heating to perform the press-forming of a glass gob 20 in the form of a glass lens.

9. 发明专利

JPH06321558A FORMING APPARATUS 失效
公开(公告)号：JPH06321558A
公开(公告)日：1994-11-22
申请号：JP10825993
申请日：1993-05-10
申请人： COPAL CO LTD
发明人： OTSU NOBUYUKI
IPC分类号： C03B11/08 , C03B11/16
摘要： PURPOSE:To enable automatic confirmation of the proper mounting and positioning of a glass gob on a lower cavity by providing a light-receiving means to detect the absence of a molding object on a cavity by receiving light from a light-emission means having a specific structure. CONSTITUTION:A scanning laser source 5 is placed out of a lower mold at the level of the upper face of the mold to irradiate glass gobs 4, 4A, 4B, 4C with laser light through plural reflection mirrors 11, 11A, 11B, 11C. A laser light receiving apparatus (light receiving means) 12 is placed out of the lower mold at the level of the upper face of the mold. If the glass gobs 4, 4A, 4B, 4C are not properly mounted or positioned on the lower cavity 3, the laser beams reflected from the all or a part of the plural opposite reflection mirrors 11, 11A, 11B, 11C are straightly received by the light receiving apparatus to detect the absence of the glass gob 4C on the lower cavity 3. The work is immediately stopped when the glass gob 4C is judged not to be properly mounted or positioned on the cavity from the detection result.

10. 发明专利

JPH01303725A WET ETCHING 失效
公开(公告)号：JPH01303725A
公开(公告)日：1989-12-07
申请号：JP13283488
申请日：1988-06-01
申请人： COPAL CO LTD
发明人： KIMURA YOSHIYUKI , KITAZAWA OSAMU , OTSU NOBUYUKI
IPC分类号： H01L21/306
摘要： PURPOSE:To enable the termination of etching process to be checked by the change in color due to the removal of a colored layer by a method wherein, when the colored layer is etched away down to specified depth after a resist pattern, the colored layer is previously formed. CONSTITUTION:A colored layer 26 comprising yellow brown colored SiO formed on the surface of an aluminum electrode 20 to be aligned with the electrode 20. In order to form a bonding pad 200, after etching away an SiO2 layer 24, the colored layer 26 ls etched away. Consequently, the etching process is terminated when the colored layer 26 is etched away. For an examiner to check the termination of etching process, he has to recognize the yellow brown color by the existence of the colored layer 26 on the way of the process while recognizing the fading of said color at the termination of the etching process.

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