发明申请
- 专利标题： Plastic molding and method and apparatus for producing the same by injection molding
- 专利标题（中）： 塑料成型及其注塑成型方法及其制造方法
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申请号： US09878977申请日： 2001-06-13
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公开(公告)号： US20010028134A1公开(公告)日： 2001-10-11
- 发明人: Toshihiro Kanematsu , Yasuo Yamanaka , Akira Fukushima , Kiyotaka Sawada , Motoyasu Murai
- 申请人： RICOH COMPANY, LTD.
- 申请人地址： JP Ota-ku
- 专利权人： RICOH COMPANY, LTD.
- 当前专利权人： RICOH COMPANY, LTD.
- 当前专利权人地址： JP Ota-ku
- 优先权： JP9-082985 19970401; JP9-183049 19970623; JP9-184244 19970710
- 主分类号： B29C045/34
- IPC分类号： B29C045/34 ; B29D011/00
摘要：
A plastic molding for use in an optical device, a method of producing the molding by injection molding, and an apparatus for practicing the method are disclosed. Only a part of a molding expected to sink is surely caused to sink while, e.g., a mirror surface is surely transferred to a desired part of the molding.