公开(公告)号：US20240002263A1

公开(公告)日：2024-01-04

申请号：US18254114

申请日：2021-11-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroki ISHIKAWA ,  Ayaka NAGATA ,  Risako KOIKE ,  Yui MATSUMOTO ,  Hiroki MURASE ,  Minato KATO ,  Yohsuke HAMADA ,  Yuko MARUO ,  Hiroshi YANO ,  Yoshihiro SAKAGUCHI

IPC: C02F1/42 ,  C02F1/461 ,  C02F1/00 ,  B01J39/07 ,  B01J39/18 ,  B01J41/07 ,  B01J41/12 ,  B01J47/028 ,  B01J47/14 ,  B01J49/75 ,  B01J49/53 ,  B01J49/57 ,  B01J49/85 ,  B01J49/06 ,  B01J49/07 ,  B01J49/08

CPC classification number: C02F1/42 ,  C02F1/4618 ,  C02F1/008 ,  B01J39/07 ,  B01J39/18 ,  B01J41/07 ,  B01J41/12 ,  B01J47/028 ,  B01J47/14 ,  B01J49/75 ,  B01J49/53 ,  B01J49/57 ,  B01J49/85 ,  B01J49/06 ,  B01J49/07 ,  B01J49/08 ,  C02F2001/425 ,  C02F2001/422 ,  C02F2303/16 ,  C02F2301/08 ,  C02F2201/4613 ,  C02F2201/46145 ,  C02F2303/14 ,  C02F2301/043 ,  C02F2209/42

Abstract: Water softening device includes water softening tank and neutralizing tank. Water softening tank softens raw water containing a hardness component by weakly acidic cation exchange resin. Water softening tank includes first water softening tank and second water softening tank. Neutralizing tank neutralizes the pH of softened water that has passed through water softening tank by weakly basic anion exchange resin. Neutralizing tank includes first neutralizing tank and second neutralizing tank. Water softening device is configured to cause raw water containing a hardness component to flow through first water softening tank, first neutralizing tank, second water softening tank, and second neutralizing tank in this order.

公开(公告)号：US20220178630A1

公开(公告)日：2022-06-09

申请号：US17426090

申请日：2019-08-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Eisaku KUMAZAWA ,  Yohsuke HAMADA ,  Motoki HATA ,  Masato HONDA ,  Shotaro YAMAGUCHI

IPC: F28F21/00 ,  F24F12/00 ,  F28F3/08

Abstract: Heat exchange element is heat exchange element where heat exchange element pieces each of which includes heat transfer plate with heat conductivity and a plurality of ribs provided on one surface of heat transfer plate are laminated to alternately form exhaust air passage and supply air passage, and exhaust air flow flowing in exhaust air passage and supply air flow flowing in supply air passage exchange heat via heat transfer plate, heat transfer plate and rib are fixed to each other by an adhesive member, rib is formed of a plurality of fiber members with heat meltability and hygroscopicity, and rib has a fiber melting layer that is formed by melting and fixing the plurality of fiber members on the surface of rib.