A writing device for displaying an image on a display layer having a containing portion in which electrophoretic particles are contained, includes: a casing; a power supply provided in the casing; an electrode portion which is provided in the casing and is electrically connected to the power supply; and a conductive portion which is provided in the casing and is electrically connected to the power supply, wherein display of the image is performed by electrically connecting the electrode portion to the display layer so that the conductive portion is electrically connected to the display layer.

Claims

9 · 3 independent · depth 2

9 granted claims

›1.independentA writing device for displaying an image on a display layer having a containing portion in which electrophoretic particles are contained, the writing …+5

›7.independentA display sheet on which an image is displayed by a writing device having a casing, a power supply provided in the casing, an electrode portion which …+1

›9.independentAn electronic device comprising:na display sheet having an electrode layer and a display layer, which is provided on the electrode layer and has a con…

Classifications

6 codes

IPC · International Patent Classification

Section G — Physics

G06F3/033
G09G3/34
G08B21/00

USPC · US Patent Classification

345/179340/636.16345/107

Claim changes

Soon

Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

Pendency

3.3 y

1,215 days filing → grant

Office actions

non-final + final

Responses

no RCE

Interviews

examiner interview summaries

Examiner

Charles V Hicks

art unit 2694 · TC 2600

Law firm

Law firm · Log in to unlock

Citations: 5 back · 0 forward

See the full prosecution history — every USPTO and applicant action on this file, in order.

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20110018843 A1	27 Jan 2011

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.