Richard L Chan

US Patent:

6774667, Aug 10, 2004

Filed:

May 9, 2002

Appl. No.:

10/143721

Inventors:

Richard Chan - Los Altos CA

Assignee:

Actel Corporation - Mountain View CA

International Classification:

G06F 738

US Classification:

326 37, 326 88, 326 92

Abstract:

A programmable gate array comprising: a plurality of logic modules, each logic module having at least one output coupled to an isolation transistor, each isolation transistor in each of the plurality of logic modules having a gate; and a charge pump having a pump-voltage output line coupled to the gates of each isolation transistor in each of the plurality of logic modules. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1. 72(b).

US Patent:

20110253541, Oct 20, 2011

Filed:

Apr 17, 2011

Appl. No.:

13/088390

Inventors:

Richard Chan - La Jolla CA, US
Winston Glenn Walker - Littleton CO, US
Rita M. Wong - San Diego CA, US
Jason In - San Diego CA, US

International Classification:

G01N 27/447

US Classification:

204612

Abstract:

The present invention discloses apparatuses and methods for the visualization of fluorophores in biological systems such as electrophoresis gels and cell cultures. Preferred embodiments of the apparatuses consists of a tray or tank having one or more light sources disposed to direct light through an electrophoresis gel disposed within the vessel such that the luminescence from fluorophores in the gel are easily visualized.

US Patent:

57620768, Jun 9, 1998

Filed:

Nov 12, 1996

Appl. No.:

8/748046

Inventors:

Richard M. Chan - San Francisco CA
Wende D. Chan - San Francisco CA

International Classification:

A45D 822
A45D 828

US Classification:

132278

Abstract:

A barrette for holding hair having an improved wireform latch in which the barrette includes a top plate having upstanding pivots and upstanding receptor hooks, and the wireform being a semirigid wire in a frogleg shape which is put in tension parallel to the plate by compressing the legs together to allow hooking of the legs to the pivots and in rotary tension away from the plate by compressing hair between the plate and wireform by such hooking.

US Patent:

51791722, Jan 12, 1993

Filed:

Nov 21, 1990

Appl. No.:

7/616471

Inventors:

Richard M. Chan - Fremont CA
Ta Y. Ching - Novato CA
Ta-Wang Lai - Taipei, TW

Assignee:

Henkel Research Corporation - Santa Rosa CA

International Classification:

C08G 6524
C08F 830
C08L 3314
C08L 6302

US Classification:

5253289

Abstract:

Curing agents for epoxy resins composed of (a) the reaction product of a co-reactant comprising either an epichlorohydrin (co) polymer or a (co)polymer of a chlorovinyl acetate, chloroalkyl acrylate with an organic amino compound containing at least one active hydrogen and having a pK. sub. B value within the range of from about 7 to about 9, preferably imidazole and substituted imidazoles; (b) an N-fatty imidazole and (a); (c) an N-fatty imidazole and an elastomeric polymer are disclosed. The curing agents are essentially water insoluble and give rise to epoxy resins which may be cured at relatively low temperatures below about 100. degree. C. The epoxy resins are suitable for use as adhesives, coatings and in composite applications.

US Patent:

20180285405, Oct 4, 2018

Filed:

Mar 31, 2017

Appl. No.:

15/476380

Inventors:

- San Francisco CA, US
Richard Chan - San Francisco CA, US

International Classification:

G06F 17/30
H04L 29/08

Abstract:

In some embodiments, a method can involve identifying content items associated with a user account at a content management system that have a follow setting enabled for tracking changes to the content items. The method can involve monitoring, based on the follow setting, content modifications from other user accounts and read-unread status events from the user account. The method can involve identifying, for a content item, an event triggering a different read-unread status than a current read-unread status set on the user account for the content item. The method can further involve modifying the current read-unread status to the different read-unread status and updating the content item to include a visual indication of the different read-unread status.

US Patent:

20180045677, Feb 15, 2018

Filed:

Oct 24, 2017

Appl. No.:

15/791903

Inventors:

- San Diego CA, US
Richard Chan - La Jolla CA, US
Rita M. Wong - San Diego CA, US
Ramey K. Chan - San Diego CA, US
Po Ling Cheng - San Diego CA, US

International Classification:

G01N 27/447

Abstract:

An electrophoresis running tank assembly uses two opposed rows of LEDs to illuminate DNA-containing gel on a transparent tray positioned between the rows. A respective cylindrical lens is positioned horizontally between each row and a respective edge of the tray. The optical axis of the illumination light is midway between a bottom surface of the gel tray and a top surface of the gel.

US Patent:

20170103045, Apr 13, 2017

Filed:

Dec 22, 2016

Appl. No.:

15/389331

Inventors:

- San Francisco CA, US
Jean-Denis Greze - San Francisco CA, US
Daniel Horn - Palo Alto CA, US
Bo Hu - HIllsborough CA, US
Richard W. Chan - San Francisco CA, US
Andy Yang - San Francisco CA, US
Philip Rha - San Francisco CA, US
Adhiraj Somani - San Francisco CA, US

International Classification:

G06F 17/21
G06F 17/24

Abstract:

A document preview system provides previews of a native document to client devices. The previews include comments associated with native objects in the native document. The document preview system identifies bounding areas in the preview associated with the native objects, which may be identified by the rendering markers applied to the native document prior to rendering. Using the bounding areas, the document preview system identifies comments for the native document and determines the location to display the comment using native objects associated with the comment. When a new comment is received from a user for a preview of a native document, the document preview system determines native objects for the new comment that match a user's selection for placing the new comment. The new comment is inserted with the native objects in the native document.

US Patent:

20160117289, Apr 28, 2016

Filed:

Oct 24, 2014

Appl. No.:

14/523756

Inventors:

- San Francisco CA, US
Jean-Denis Greze - San Francisco CA, US
Daniel Horn - Palo Alto CA, US
Bo Hu - HIllsborough CA, US
Richard W. Chan - San Francisco CA, US
Andy Yang - San Francisco CA, US
Philip Rha - San Francisco CA, US
Adhiraj Somani - San Francisco CA, US

International Classification:

G06F 17/21
G06F 17/24

Abstract:

A document preview system provides previews of a native document to client devices. The previews include comments associated with native objects in the native document. The document preview system identifies bounding areas in the preview associated with the native objects, which may be identified by the rendering markers applied to the native document prior to rendering. Using the bounding areas, the document preview system identifies comments for the native document and determines the location to display the comment using native objects associated with the comment. When a new comment is received from a user for a preview of a native document, the document preview system determines native objects for the new comment that match a user's selection for placing the new comment. The new comment is inserted with the native objects in the native document.