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1. 发明专利

JPH0366996B2 失效
公开(公告)号：JPH0366996B2
公开(公告)日：1991-10-21
申请号：JP5734083
申请日：1983-04-01
申请人： CITIZEN WATCH CO LTD
发明人： WATANABE KISUKE
IPC分类号： C22C5/02 , B23K35/30

2. 发明专利

JPS54152013A WATCH COVER GLASS 失效
公开(公告)号：JPS54152013A
公开(公告)日：1979-11-29
申请号：JP6071478
申请日：1978-05-22
申请人： CITIZEN WATCH CO LTD
发明人： WATANABE KISUKE
IPC分类号： C03C17/38 , G04B39/00

3. 发明专利

JPS54136372A STRUCTURE OF GLASS PART OF WATCH CASE 失效
公开(公告)号：JPS54136372A
公开(公告)日：1979-10-23
申请号：JP4392278
申请日：1978-04-14
申请人： CITIZEN WATCH CO LTD
发明人： MAEKAWA YASUO , SEKIGUCHI TSUNETOSHI , WAKI MASAHIKO , YAMAGATA EICHIYOUSEI , KOIDE HIROSHI , MATSUMURA OSAMU , WATANABE KISUKE
IPC分类号： G04B39/02 , G04B39/00
摘要： PURPOSE:To improve the fixing power and waterproofness of glass by disposing a thin plate glass to the circumferential groove of a glass fixing member such as glass bezel, case band, etc. through a synthetic resin ring and letting a part of the synthetic ring protrude from spacing thereof. CONSTITUTION:A circumferential groove 11 for mounting a Teflon resin ring 3 is formed on the inside circumferential face of a glass bezel 1 and glass 2, which is thin plate glass of 1.2 mm or under in thickness and has an upper slope 25 and a lower slope 22 on the outside circumference, is set in the position where the height of the intersecting lines of the upper slope 25 and outside diametral face 21 of the glass 2 is lower by 0.05 to 0.3 mm than the top inside surface of the circumferential groove 11 in the state where the Teflon resin ring 3 is mounted between the glass outside circumference 21 and the glass bezel 1. It is fixed by forming an extrusion part 32 with the Teflon resin ring 3 protruding from the clearance thereof, whereby the glass is fixed and waterproofness improved.

4. 发明专利

JPS5466174A STRUCTURE OF WATCH BACK COVER 失效
公开(公告)号：JPS5466174A
公开(公告)日：1979-05-28
申请号：JP13328077
申请日：1977-11-07
申请人： CITIZEN WATCH CO LTD
发明人： KOIDE HIROSHI , MAEKAWA YASUO , WAKI MASAHIKO , SEKIGUCHI TSUNETOSHI , YAMAGATA EICHIYOUSEI , MATSUMURA OSAMU , WATANABE KISUKE
IPC分类号： G04B37/11 , G04B37/08
摘要： PURPOSE:To enable thin back cover to be fixed to case band by forcing a synthetic resin ring disposed in circumferential groove in the back cover fixing member having a collar part in the upper part and a circumferential groove on the inner side thereby mounting the back cover. CONSTITUTION:A collar part 12 is provided in the lower part of a case band 1 and a circumferential groove 11 having a back cover receiving face 13 in the upper part is provided on the inner side. A back cover 2 is so formed that its rising height part 23 becomes lower than the lower inside face 25 of the circumferential groove 11 and its diameter D2 is formed slightly smaller than the inside diameter D1 of the collar part 12. A guide taper face is formed in the upper part of the outside face 21. As a synthetic resin ring 3 is disposed in the circumferential groove 11 formed in this way and the back cover 2 is forced in, part of the synthetic ring is protruded from the clearance between the lower inside face 15 of the circumferential groove 11 and the rising height part 23 of the back cover 2, whereby a protruding part 34 is formed, thus even in the case of using a thin back cover, strong fixing force and waterproofness may be obtained.

5. 发明专利

JPS5278728A METHOD OF PRODUCING DECORATIVE PLATES HAVING PATTERNS OF LARGE CRYSTALS 失效
公开(公告)号：JPS5278728A
公开(公告)日：1977-07-02
申请号：JP15716775
申请日：1975-12-26
申请人： CITIZEN WATCH CO LTD
发明人： WATANABE KISUKE , TAKASUGI TSUNEJI
IPC分类号： C21D1/26 , B44C1/00 , B44C1/22 , B44C5/00 , B44C5/04 , B44F9/08 , C23F1/00

6. 发明专利

JPS60228667A MANUFACTURE OF EXTERNAL DECORATIVE PARTS FOR WATCH 失效
公开(公告)号：JPS60228667A
公开(公告)日：1985-11-13
申请号：JP8346184
申请日：1984-04-25
申请人： CITIZEN WATCH CO LTD
发明人： WATANABE KISUKE
IPC分类号： C23C10/28 , C23C26/00 , G04B37/22
摘要： PURPOSE:To make external parts for a watch polychromatic by putting a Ti plate plated with Ni-Pd, Ni or the like on part of the surface of an Au alloy blank and heating them to a prescribed temp. CONSTITUTION:The Ti plate 3 plated 4 with Ni-Pd, Ni or the like is put on part of the surface of the golden Au alloy blank 1, and they are heated to 750-830 deg.C in a reducing atmosphere to diffuse Ti in the Au alloy by cementation. The Ti plate 3 is then removed. Part of the blank 1 is converted into a white alloy part 5 to produce a white color tone.

7. 发明专利

JPS60224772A SURFACE HARDENING METHOD OF GOLD ALLOY 失效
公开(公告)号：JPS60224772A
公开(公告)日：1985-11-09
申请号：JP7977184
申请日：1984-04-20
申请人： CITIZEN WATCH CO LTD
发明人： WATANABE KISUKE
IPC分类号： C23C10/28 , C23C12/00 , C23C14/02
摘要： PURPOSE:To form a film layer consisting of TiN and to improve the wear resistance of a gold alloy by bringing the gold alloy into contact with a powder mixture composed of Ti and Al2O3, heating the same in a vacuum atmosphere having a limit value or above, heating the alloy at the temp. in a specific range and subjecting the Ti diffused layer to a nitriding treatment at a specific temp. in a nitrogen atmosphere after formation of said layer. CONSTITUTION:The gold alloy is brought into contact with the powder mixture composed of Ti and Al2O3 and is heated at >=750 deg.C and =10 Torr in order to form the Ti-diffused layer on the surface of the gold alloy to prevent oxidation of the Ti powder. The diffused surface is then subjected to the nitriding treatment at 500-800 deg.C in the nitrogen atmosphere to form a hard titanium nitride (TiN.Ti2N) phase as the film layer on the surface of the gold alloy. The gold alloy layer is hardened to have the highly wear resistant surface by the above-mentioned method without spoiling the color tone and corrosion resistance of the gold alloy.

8. 发明专利

JPS60162572A SOLDERING METHOD 失效
公开(公告)号：JPS60162572A
公开(公告)日：1985-08-24
申请号：JP1555284
申请日：1984-01-31
申请人： CITIZEN WATCH CO LTD
发明人： WATANABE KISUKE
IPC分类号： B23K1/20
摘要： PURPOSE:To perform brazing with excellent corrosion resistance without oxdation discoloration in a method for brazing ornamental gold alloy parts to a stainless steel, etc. at =0.5mu thickness and the masking is stripped. On the other hand, Ge powder is dispersed in paraffin and is coated on the brazing surface of the parts 2 to about 20mu thickness and is further subjected to a diffusion treatment by heating in a vacuum to form a diffused layer 3. Such parts 2 are laminated via gold solder 5 on the layer 4' on the case 1 surface and are brazed at 600-800 deg.C in a vacuum.

9. 发明专利

JPS5752590A Au alloy brazing filler metal of low melting point 失效
标题翻译：低熔点的非合金烧结填充金属
公开(公告)号：JPS5752590A
公开(公告)日：1982-03-29
申请号：JP12811780
申请日：1980-09-16
申请人： Citizen Watch Co Ltd
发明人： WATANABE KISUKE
IPC分类号： B23K35/14 , B23K35/30
CPC分类号： B23K35/3013
摘要： PURPOSE:To cause eutectic reaction during brazing, lower the m.p. of a brazing filler metal considerably, and improve formability by providing coating layers of Sn on the surfaces of an alloy brazing filler metal consisting basically of Au. CONSTITUTION:An alloy brazing filler metal consisting basically of Au is used as a core material 1, and coating layers 2 of Sn are formed thereon by applying surface treatment such as vapor deposition, plating or the like. The weight ratio of the Au and Sn in the alloy brazing filler metal is kept at
摘要翻译：目的：在钎焊时引起共晶反应，降低m.p. 的钎料，并且通过在基本上由Au构成的合金钎焊料金属的表面上设置Sn涂层，提高成形性。构成：使用以Au为基本组成的合金钎焊料作为芯材1，通过蒸镀，电镀等的表面处理，形成Sn的涂层2。合金钎料中Au和Sn的重量比保持在<=（5:1）。由此，作为芯材1的Au合金钎焊料和涂层的Sn被加热扩散，从而引起共晶反应，从而降低了m.p。的Au合金钎焊料。因此，可以在不损坏外部部件的表面的情况下进行钎焊。

10. 发明专利

JPS5520220A COVER GLASS FOR WATCH 失效
公开(公告)号：JPS5520220A
公开(公告)日：1980-02-13
申请号：JP9131978
申请日：1978-07-26
申请人： CITIZEN WATCH CO LTD
发明人： WATANABE KISUKE , ICHIKAWA MASARU
IPC分类号： C03C17/36 , C03C17/40 , G04B39/00
摘要： PURPOSE:To provide the title cover glass with a nonreflecting effect by forming a soft metal thin film of a specified thickness and a coating film on the surface of inorg. glass to prevent deterioration in strength of the glass. CONSTITUTION:Below 100 Angstrom thick, thin film 2 of soft metal selected from Au, Ag and In is formed by vacuum deposition on the surface of inorg. glass 1 strengthened by forming a compressive stress layer. On the film 2 coating film 3 of metal, oxide, nitride, fluoride or the like is formed by vacuum deposition to obtain a laminate of glass 1-soft metal thin film 2-coating film 1. Thus, internal stress formed at the interface between glass 1 and film 3 is absorbed in thin film 2 and allowed to disappear.

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