IP Library › Granted Patent US 12,490,709
Granted Patent B2
US 12,490,709 · App. 17/837,414 · Granted Dec 9, 2025

Excrement treatment material and method for manufacturing the same

Inventor: Junji Yoshinaga (Tokyo, JP)
Assignee: DAIKI CO., LTD.
A01K1/0155C04B28/14C04B2111/0062
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Quick Facts
Patent No.
US 12,490,709
App. No.
17/837,414
Granted
Dec 9, 2025
Kind
B2
Abstract

An excrement treatment material is composed of a grain that has a water-repellent property. The grain contains a water-absorbent material as a first main material, and contains gypsum as a second main material.

Claims (42)

1 . An excrement treatment material composed of a grain that has a water-repellent property,

wherein the grain contains a water-absorbent material as a first main material, and contains gypsum as a second main material, and

wherein the grain has a water-repellent rate of 80% or more.

2 . The excrement treatment material according to claim 1 ,

wherein the water-absorbent material is an organic substance.

3 . The excrement treatment material according to claim 2 ,

wherein the water-absorbent material is recycled paper.

4 . The excrement treatment material according to claim 1 ,

wherein a weight ratio of the water-absorbent material with respect to the grain is from 51% to 56%.

5 . The excrement treatment material according to claim 1 ,

wherein a weight ratio of the gypsum with respect to the grain is from 38% to 42%.

6 . The excrement treatment material according to claim 1 ,

wherein the grain contains a sub-material in addition to the first main material and the second main material.

7 . The excrement treatment material according to claim 6 ,

wherein the grain contains an adhesive as the sub-material.

8 . The excrement treatment material according to claim 7 ,

wherein the adhesive is cornstarch.

9 . The excrement treatment material according to claim 6 ,

wherein the grain contains colorant as the sub-material.

10 . The excrement treatment material according to claim 9 ,

wherein the colorant is chalk powder.

11 . The excrement treatment material according to claim 6 ,

wherein the grain contains a water-repellent agent as the sub-material.

12 . The excrement treatment material according to claim 11 ,

wherein the water-repellent agent is paraffin.

13 . The excrement treatment material according to claim 6 ,

wherein the grain contains a deodorizing antimicrobial agent as the sub-material.

14 . The excrement treatment material according to claim 13 ,

wherein the deodorizing antimicrobial agent is copper sulfate or catechin powder.

15 . A method for manufacturing an excrement treatment material composed of a grain that has a water-repellent property, the method comprising:

a grain forming step of forming the grain that contains a water-absorbent material as a first main material, and contains gypsum as a second main material,

wherein the grain has a water-repellent rate of 80% or more.

16 . The method for manufacturing an excrement treatment material according to claim 15 ,

wherein the water-absorbent material is an organic substance.

17 . The method for manufacturing an excrement treatment material according to claim 16 ,

wherein the water-absorbent material is recycled paper.

18 . The method for manufacturing an excrement treatment material according to claim 15 ,

wherein in the grain forming step, the grain is formed that contains a sub-material in addition to the first main material and the second main material.

19 . The method for manufacturing an excrement treatment material according to claim 18 ,

wherein in the grain forming step, the grain is formed that contains an adhesive as the sub-material.

20 . The method for manufacturing an excrement treatment material according to claim 18 ,

wherein in the grain forming step, the grain is formed that contains colorant as the sub-material.

Assignments (2)
CHANGE OF ADDRESS Recorded Oct 27, 2023
From: DAIKI CO., LTD.
To: DAIKI CO., LTD.
Reel/Frame 065382/0072 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2022
From: YOSHINAGA, JUNJI
To: DAIKI CO., LTD.
Reel/Frame 060164/0962 →
Priority Claims (1)
JP 2020-072651 · Apr 15, 2020 · national
Continuity (2)
Continuation PCTJP2021004241 · Feb 5, 2021
Related Publication 20220295738A1 · Sep 22, 2022
References Cited (16)
US 12324406B2 · Yoshinaga · 2025 [cited by examiner]
US 20150360202A1 · Ito · 2015 [cited by examiner]
US 20240381834A1 · Yoshinaga · 2024 [cited by examiner]
US 20250143252A1 · Yoshinaga · 2025 [cited by examiner]
JP 2005110700A · 2005 [cited by applicant]
JP 2005312440A · 2005 [cited by applicant]
JP 2006042825A · 2006 [cited by applicant]
JP 3768203B2 · 2006 [cited by applicant]
JP 2012147694A · 2012 [cited by applicant]
JP 2014018187A · 2014 [cited by applicant]
JP 2017123808A · 2017 [cited by applicant]
WO 2014162599A1 · 2014 [cited by applicant]
Apr. 20, 2021 International Search Report issued in International Patent Application No. PCT/JP2021/004241. [cited by applicant]
Apr. 20, 2021 Written Opinion of the International Searching Authority issued in International Patent Application No. PCT/JP2021/004241. [cited by applicant]
Aug. 9, 2024 Office Action issued in Japanese Patent Application No. 2020-072651. [cited by applicant]
Aug. 30, 2023 Office Action issued in Chinese Patent Application No. 202180007509.7. [cited by applicant]