The decolorization speed adjusting method of a naphth pyran compound

Title:

The decolorization speed adjusting method of a naphth pyran compound

Document Type and Number:

Japanese Patent JP6071871

Kind Code:

B2

Inventors:

Jiro Abe
Hirohisa Kato
Shimizu Takehiro
Yuki Nakagawa

Application Number:

JP2013273217A

Publication Date:

February 01, 2017

Filing Date:

December 27, 2013

Export Citation:

Assignee:

Jiro Abe
Ito Optical Co., Ltd.

International Classes:

C09K9/02

Domestic Patent References:

JP2011144289A

Attorney, Agent or Firm:

Akio Iida
Michiko Ema
Chiori Ueda
Toshiyuki Ando

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