Title:
埋葬用眼鏡の製造方法
Document Type and Number:
Japanese Patent JP6499399
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of spectacles for burial, capable of inexpensively producing spectacles for burial whose lenses are formed of biodegradable plastics, and do not generate harmful gas when being subjected to cremation and when the spectacles are worn, which can make a face of the wearer look similar to the face wearing lenses formed of a normal material.SOLUTION: A production method of spectacles for burial is a production method for spectacles for burial whose lenses have the level of optical power respectively for correction of eyesight. The spectacles for burial are cremated while being worn by a decedent, and all components of the spectacles are formed of biodegradable plastics which are burned at cremation temperature and do not generate harmful gas, and the spectacles can be produced by using a 3D printer.
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Inventors:
Kayama Yuji
Application Number:
JP2014076686A
Publication Date:
April 10, 2019
Filing Date:
April 03, 2014
Export Citation:
Assignee:
Mishiro Holdings Co., Ltd.
International Classes:
G02C1/00; B29C67/00; G02C5/00; G02C7/00
Domestic Patent References:
| JP2003180767A | ||||
| JP2001150556A | ||||
| JP8280760A | ||||
| JP60165932U | ||||
| JP2012513319A | ||||
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Foreign References:
| US5844654 | ||||
| WO2007018287A1 | ||||
| WO2013172798A1 | ||||
| US20020032954 |
Attorney, Agent or Firm:
Koichi Nakazato
Hitoshi Kawasaki
Hitoshi Kawasaki