专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

DE69331093T2 未知
公开(公告)号：DE69331093T2
公开(公告)日：2002-03-14
申请号：DE69331093
申请日：1993-08-16
申请人： KOIKE YASUHIRO
发明人： KOIKE YASUHIRO , NIHEI EISUKE
IPC分类号： B29C47/00 , B29D11/00 , G02B1/04 , G02B6/028 , G02B3/00 , G02B6/00 , G02B6/12 , G02B6/18 , B29C47/06
摘要： A polymer is inserted into a cylinder (1) and heated, and a pressure is then applied to the polymer so as to extrude the same in the shape of a fiber from a nozzle (3). In the meantime, a diffusible material is injected from a nozzle (5) into the central portion of a molten liquid of this polymer through a thin-tube cylinder (4), and it is diffused gradually from the central portion of the molten polymer to the circumferential portion thereof as it flows toward a discharge port of the nozzle (3). The material extruded from the nozzle (3) is air-cooled and taken up around a drum (7) via a roller (6). The fiber-like molded product provides a distribution of refractive index varying continuously from the center thereof toward the circumferential portion thereof, and serves as a convergent or divergent plastic light transmitter. Conversely, even when the molten liquid of the polymer is extruded from the nozzle (5), a light transmitter having a region in which a refractive index varies continuously can be obtained. A proper number of the cylinders and various kinds of materials to be supplied to the cylinders can be selected.

2. 发明专利

DE69129363T2 未知
公开(公告)号：DE69129363T2
公开(公告)日：1999-01-28
申请号：DE69129363
申请日：1991-08-16
申请人： NIPPON PETROCHEMICALS CO LTD , KOIKE YASUHIRO
发明人： KOIKE YASUHIRO , NIHEI EISUKE
IPC分类号： G02B6/00 , G02B1/04 , G02B3/00 , G02B6/028 , G02B6/138 , C08F265/06 , G02B6/18
摘要： A method of manufacturing a multimode optical transmission medium from a synthetic resin having the distribution of refractive index varying continuously in a fixed direction. In the method a monomer is polymerized while a transparent polymer for constituting the wall of a vessel is being resolved into the monomer. Therefore, this method is free from the defect of methods using conventional polymerization reactions, and has an extremely high productivity.

3. 发明专利

DE69129363D1 未知
公开(公告)号：DE69129363D1
公开(公告)日：1998-06-10
申请号：DE69129363
申请日：1991-08-16
申请人： NIPPON PETROCHEMICALS CO LTD , KOIKE YASUHIRO
发明人： KOIKE YASUHIRO , NIHEI EISUKE
IPC分类号： G02B6/00 , G02B1/04 , G02B3/00 , G02B6/028 , G02B6/138 , C08F265/06 , G02B6/18
摘要： A method of manufacturing a multimode optical transmission medium from a synthetic resin having the distribution of refractive index varying continuously in a fixed direction. In the method a monomer is polymerized while a transparent polymer for constituting the wall of a vessel is being resolved into the monomer. Therefore, this method is free from the defect of methods using conventional polymerization reactions, and has an extremely high productivity.

4. 发明专利

DE69118353D1 未知
公开(公告)号：DE69118353D1
公开(公告)日：1996-05-02
申请号：DE69118353
申请日：1991-08-16
申请人： NIPPON PETROCHEMICALS CO LTD , KOIKE YASUHIRO
发明人： KOIKE YASUHIRO , NIHEI EISUKE
IPC分类号： G02B6/00 , G02B1/04 , G02B3/00 , G02B6/028 , G02B6/138 , C08F265/06 , G02B6/18

5. 发明专利

DE69331093D1 未知
公开(公告)号：DE69331093D1
公开(公告)日：2001-12-13
申请号：DE69331093
申请日：1993-08-16
申请人： KOIKE YASUHIRO
发明人： KOIKE YASUHIRO , NIHEI EISUKE
IPC分类号： B29C47/00 , B29D11/00 , G02B1/04 , G02B6/028 , G02B3/00 , G02B6/00 , G02B6/12 , G02B6/18 , B29C47/06
摘要： A polymer is inserted into a cylinder (1) and heated, and a pressure is then applied to the polymer so as to extrude the same in the shape of a fiber from a nozzle (3). In the meantime, a diffusible material is injected from a nozzle (5) into the central portion of a molten liquid of this polymer through a thin-tube cylinder (4), and it is diffused gradually from the central portion of the molten polymer to the circumferential portion thereof as it flows toward a discharge port of the nozzle (3). The material extruded from the nozzle (3) is air-cooled and taken up around a drum (7) via a roller (6). The fiber-like molded product provides a distribution of refractive index varying continuously from the center thereof toward the circumferential portion thereof, and serves as a convergent or divergent plastic light transmitter. Conversely, even when the molten liquid of the polymer is extruded from the nozzle (5), a light transmitter having a region in which a refractive index varies continuously can be obtained. A proper number of the cylinders and various kinds of materials to be supplied to the cylinders can be selected.

6. 发明专利

DE69118353T2 未知
公开(公告)号：DE69118353T2
公开(公告)日：1996-11-07
申请号：DE69118353
申请日：1991-08-16
申请人： NIPPON PETROCHEMICALS CO LTD , KOIKE YASUHIRO
发明人： KOIKE YASUHIRO , NIHEI EISUKE
IPC分类号： G02B6/00 , G02B1/04 , G02B3/00 , G02B6/028 , G02B6/138 , C08F265/06 , G02B6/18

7. 发明公开

EP0615141A4 METHOD OF MANUFACTURING PLASTIC LIGHT TRANSMITTERS. 失效
标题翻译：一种用于生产的塑料光发射器的过程。
公开(公告)号：EP0615141A4
公开(公告)日：1995-02-15
申请号：EP94908118
申请日：1993-08-16
申请人： KOIKE YASUHIRO
发明人： KOIKE YASUHIRO , NIHEI EISUKE
IPC分类号： B29C47/00 , B29D11/00 , G02B1/04 , G02B6/028 , G02B3/00 , G02B6/00 , G02B6/12 , G02B6/18
CPC分类号： G02B6/02038 , B29C47/00 , B29C47/0026 , B29D11/00663 , G02B1/046
摘要： A polymer is inserted into a cylinder (1) and heated, and a pressure is then applied to the polymer so as to extrude the same in the shape of a fiber from a nozzle (3). In the meantime, a diffusible material is injected from a nozzle (5) into the central portion of a molten liquid of this polymer through a thin-tube cylinder (4), and it is diffused gradually from the central portion of the molten polymer to the circumferential portion thereof as it flows toward a discharge port of the nozzle (3). The material extruded from the nozzle (3) is air-cooled and taken up around a drum (7) via a roller (6). The fiber-like molded product provides a distribution of refractive index varying continuously from the center thereof toward the circumferential portion thereof, and serves as a convergent or divergent plastic light transmitter. Conversely, even when the molten liquid of the polymer is extruded from the nozzle (5), a light transmitter having a region in which a refractive index varies continuously can be obtained. A proper number of the cylinders and various kinds of materials to be supplied to the cylinders can be selected.

8. 发明专利

JPH05127132A PRODUCTION OF LENS FOR CORRECTING SIGHT 失效
公开(公告)号：JPH05127132A
公开(公告)日：1993-05-25
申请号：JP28682191
申请日：1991-10-31
申请人： KOIKE YASUHIRO , NIPPON CONTACT LENSE
发明人： KOIKE YASUHIRO , NIHEI EISUKE , KURIAKI MASAMITSU , NAKAMURA KANICHI , TANAHASHI NAOKATSU
IPC分类号： A61F2/16 , A61L27/00 , G02C1/04 , G02C7/04 , G02C7/06
摘要： PURPOSE:To enable the easy production of the multifocus contact lens for pressbyopia by injecting polymerizable monomers and nonpolymerizable compds. into the hole or recessed part of a plastic material and diffusing monomer particles, then subjecting the material to a polymn. treatment. CONSTITUTION:This process has a stage for injecting at least one kind of the polymerizable monomers and at least one kind of the nonpolymerizable monomers into the hole or recessed part of the plastic material and a stage for diffusing the monomer molecules and subjecting the monomers to the polymn. treatment. Namely, the plastic material is swollen by the monomers to form a swollen layer on the surface and the selective diffusion of the mixture composed of two kinds of the monomers (the polymerizable monomers and the nonpolymerizable compds.) or the monomers and oligomers or the monomers and polymers into the swollen layer is executed. The swollen layer is subjected to the polymn. treatment while the compsn. distribution is maintained to constitute the plastic material having the refractive index distribution complying with the compsn. distribution. As a result, the multifocus contact lens for pressbyopia and intraocular lens having excellent transparency are easily produced.

9. 发明专利

JPH05173025A PRODUCTION OF SYNTHESIZED RESIN LIGHT TRANSMISSION BODY 失效
公开(公告)号：JPH05173025A
公开(公告)日：1993-07-13
申请号：JP35767391
申请日：1991-12-26
申请人： KOIKE YASUHIRO , NIPPON PETROCHEMICALS CO LTD
发明人： KOIKE YASUHIRO , NIHEI EISUKE , MATSUMURA YASUO , MIYATA SHOGO , TERAUCHI KAEDE
IPC分类号： G02B6/00 , G02B6/028
摘要： PURPOSE:To produce a multimode light transmission body having excellent characteristics and continuous distribution of refractive index by controlling differences of refractive indexes and concentrations among monomers in a mixture liquid of plural radical copolymerizable monomers to specified ranges. CONSTITUTION:A mixture liquid consisting of plural radical copolymerizable monomers is gradually supplied to a cylindrical chamber which is horizontally held and rotates around the center axis. Radical polymn. is effected as monomers polymerize through a gelatinized state from the wall of the chamber to the inner part of the chamber. These respective monomers have different ratio of unreacted monomer concn. in the gel to monomer concn. in the mixture liquid, and the difference of refractive index of monomers as homopolymers is specified to 0.005. The proportion of monomer compsn. in the obtd. polymer is controlled so that proportion of monomers having higher reactivity is decreased along the progressing direction of the polymn as to the ratio of unreacted monomer concn in the gel to monomer concn. in the mixture liquid. Thereby, the obtd. light transmission body has continuous gradient of refractive index along the progressing direction of polymn.

10. 发明专利

JPH05173026A PRODUCTION OF SYNTHESIZED RESIN LIGHT TRANSMISSION BODY 失效
公开(公告)号：JPH05173026A
公开(公告)日：1993-07-13
申请号：JP35767491
申请日：1991-12-26
申请人： KOIKE YASUHIRO , NIPPON PETROCHEMICALS CO LTD
发明人： KOIKE YASUHIRO , NIHEI EISUKE , MATSUMURA YASUO , MIYATA SHOGO , TERAUCHI KAEDE
IPC分类号： G02B6/00 , G02B6/028
摘要： PURPOSE:To improve defective points of a production method for refractive index distribution type synthetic resin light transmission body by polymn. reaction, and to provide a production method by which a multimode light transmission body having excellent characteristics and continuous distribution of refractive index can be produced with good productivity. CONSTITUTION:Monomers dissolving a transparent polymer are gradually supplied to a cylindrical chamber whose wall is constituted of the transparent polymer and which is horizontally held and rotates around the center axis. Gelatinized layer is successively moved from the chamber wall to the inner part of the chamber while dissolving the transparent polymer into the monomers. Thus, the synthetic resin light transmission body having continuous slope of refractive index in one direction is obtd.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式