Inventor

Xianfeng Chen

Inventor

Kanagawa, JP

Overview

28→

Patents

2001–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 28 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Lprimary

H01LSemiconductor devices13%

H04WWireless communication networks12%

G06FElectric digital data processing11%

H04LTransmission of digital information, e.g. telegraphic communication11%

H10NElectric solid-state devices not otherwise provided for11%

A61KPreparations for medical, dental or toiletry purposes5%

A61MDevices for introducing media into, or onto, the body5%

B41JTypewriters5%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h104%

B05DProcesses for applying fluent materials to surfaces, in general3%

PatentTitleYear

10,801,113Ferroelectric element and method of manufacturing ferroelectric element2020 10,708,736Server for sending new application portions to mobile wireless communications devices and related methods2020 10,685,839Method for implementing and regulating patterning of a graphene film by ultraviolet photo-oxidation2020 10,424,718Piezoelectric film, piezoelectric device, and method for making piezoelectric film2019 10,276,778Crystal pattern forming method, piezoelectric film producing method, piezoelectric element producing method, and liquid discharging head producing method2019 10,097,975Server for sending new application portions to mobile wireless communications devices and related methods2018 10,060,044Polarizing apparatus and polarizing method2018 10,022,322Coating method2018 9,902,153'Method of making a piezoelectric film'2018 9,894,461'Server for sending new application portions to mobile wireless communications devices and related methods'2018 9,603,795'Composite for preparing a transdermal delivery device and method for synthesizing the composite thereof'2017 9,583,270'Complex oxide, thin-film capacitive element, liquid droplet discharge head, and method of producing complex oxide'2017 9,583,694'Pattern formation method, manufacturing method of peizoelectric film and manufacturing method of piezoelectric element'2017 9,526,884'Mechanically robust fast-dissolving microneedles for transdermal drug and vaccine delivery'2016 9,469,808'Loaded particles and the method of preparing thereof'2016 9,461,239'Method of heating, method of producing piezoelectric film, and light irradiation device'2016 9,394,547'Method and apparatus for delivery of molecules to cells'2016 9,386,396'Server for sending new application portions to mobile wireless communications devices and related methods'2016 9,220,678'Coating method'2015 9,202,717'Method of making liquid discharge head, liquid discharge head, liquid discharge apparatus having liquid discharge head, and manufacturing apparatus of liquid discharge head'2015 9,154,501'Machine-to-machine communications privacy protection method and system, machine-to-machine communications service management entity, and related device'2015 8,995,908'Mobile communications system providing enhanced out of band (OOB) bluetooth pairing and related methods'2015 8,734,697'Patch production'2014 8,706,102'Server for sending new application portions to mobile wireless communications devices and related methods'2014 8,364,137'Server for sending new application portions to mobile wireless communications devices and related methods'2013 8,213,921'Server for sending new application portions to mobile wireless communications devices and related methods'2012 8,135,393'System and method for transactional application lifecycle management for mobile devices'2012 6,241,895'Spectrum water generator and method of processing water using said spectrum water generator'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2020Patents assigned to CHEN XIANFENG (15)· patent assignee history

2012–2014Patents assigned to RESEARCH IN MOTION LTD (4)· patent assignee history

2012–2020Based in Mississauga, CA· patent location history

2014–2020Patents assigned to BLACKBERRY LTD (6)· patent assignee history

2014–2016Based in Hong Kong, CN· patent location history

2015–2020Patents assigned to RICOH CO LTD (9)· patent assignee history

2015–2019Based in Kanagawa, JP· patent location history

2015–2018Based in Toowong, AU· patent location history

2016–2017Patents assigned to UNIV CITY HONG KONG (4)· patent assignee history

2016–2017Based in New Territories, HK· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CHEN XIANFENGself	15	2012–2020
RICOH CO LTD	9	2015–2020
BLACKBERRY LTD	6	2014–2020
RESEARCH IN MOTION LTD	4	2012–2014
UNIV CITY HONG KONG	4	2016–2017

Locations

Location	Patents	Span
Kanagawa, JP	8	2015–2019
Mississauga, CA	7	2012–2020
Toowong, AU	2	2015–2018
New Territories, HK	2	2016–2017
Hong Kong, CN	2	2014–2016