| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1af8df51ce24ca931ae718fb747f6aa0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2002-16502 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-1635
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-1639
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-1629
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-1628
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-1631
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-162
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-1603
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-1433
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-1645
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-16538 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41J2-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41J2-165
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41J2-16 |
| filingDate |
2019-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3edf47e6f203de08437570f7a1dc8a0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57481ad703d7547036ffeaa9e8aca213
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2396861b599669e021a6a52440376f7 |
| publicationDate |
2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11161343-B2 |
| titleOfInvention |
Liquid ejection head and manufacturing method thereof |
| abstract |
A liquid ejection head includes an ejection orifice forming surface provided with an ejection orifice from which a liquid is ejected. The ejection orifice forming surface includes a first region in a vicinity of the ejection orifice, a second region that is further spaced apart from the ejection orifice than the first region and protrudes from the first region in a liquid ejection direction and a third region that connects the first region and the second region. When a contact angle of pure water in the first region is a first contact angle θ1 and a contact angle of pure water in the third region is a third contact angle θ3, θ1 is larger than θ3 by 10 degrees or more. |
| priorityDate |
2018-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |