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Patent Searching and Data


Title:
POROUS SOUND ABSORPTION PLATE
Document Type and Number:
Japanese Patent JP2018159935
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve a sound absorption performance of a porous plate by painting, instead of avoidance of deterioration of the sound absorption performance.SOLUTION: There is provided a porous sound absorption plate 1 comprising many open holes 4. Coats 7(7a) are provided on inner wall faces of the open holes 4 of the porous plates 6 as base materials forming the porous sound absorption plate 1, the coats 7(7a) form an open hole part 8 whose volume is smaller than that of the open hole 4.SELECTED DRAWING: Figure 2

Inventors:
山口 善三
山極 伊知郎
Application Number:
JP2018096299A
Publication Date:
October 11, 2018
Filing Date:
May 18, 2018
Export Citation:
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Assignee:
株式会社神戸製鋼所
International Classes:
G10K11/16; E01F8/00
Attorney, Agent or Firm:
特許業務法人梶・須原特許事務所