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H01F 1/401

Diluted

Official title: {diluted}

H01F1/401 (Diluted) appears on 125 US grants and 124 published applications in this corpus.

Search patents in H01F

Granted patents: 125
Published applications: 124
Assignees: 88
Inventors: 358
Latest grant: 28 Oct 2025

Filings by year

H01F 1/401: granted patents and published applications per publication year
Year	Granted patents	Published applications
1989	1	0
1990	0	0
1991	0	0
1992	1	0
1993	1	0
1994	2	0
1995	1	0
1996	0	0
1997	2	0
1998	4	0
1999	4	0
2000	5	0
2001	3	3
2002	8	2
2003	2	8
2004	4	11
2005	8	7
2006	7	12
2007	6	12
2008	7	9
2009	8	11
2010	4	8
2011	5	12
2012	7	3
2013	4	4
2014	2	4
2015	6	2
2016	5	0
2017	1	0
2018	1	3
2019	2	2
2020	4	2
2021	1	3
2022	1	3
2023	2	3
2024	2	0
2025	4	0

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Ferrite particle, carrier core material for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer28 Oct 2025US 12,455,516 B2Powdertech Co., Ltd.
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer12 Aug 2025US 12,386,281 B2Powdertech Co., Ltd.
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer18 Mar 2025US 12,253,825 B2Powdertech Co., Ltd.
Magnetoresistance effect element28 Jan 2025US 12,211,524 B2TDK Corporation
Room-temperature multiferroicity material, method for preparing same, and electronic device comprising same31 Dec 2024US 12,183,492 B2Unist (Ulsan National Institute of Science and Technology)

Most cited

By later US patents