Title:
防音材及び最表面層吸音材の製造方法
Document Type and Number:
Japanese Patent JP4303446
Kind Code:
B2
Inventors:
Kanamaru Wako
Zhang Nihongo
Kawashima Mitsunari
Zhang Nihongo
Kawashima Mitsunari
Application Number:
JP2002143635A
Publication Date:
July 29, 2009
Filing Date:
May 17, 2002
Export Citation:
Assignee:
Wako Concrete Industry Co., Ltd.
International Classes:
B32B13/00; E01F8/00; C04B32/00; G10K11/16
Domestic Patent References:
| JP8218512A | ||||
| JP2000075865A | ||||
| JP8013644A | ||||
| JP10279345A | ||||
| JP9296532A | ||||
| JP2000027125A |
Attorney, Agent or Firm:
Hidekazu Miyoshi