Yu Shing Lee

US Patent:

43187340, Mar 9, 1982

Filed:

Feb 25, 1980

Appl. No.:

6/124197

Inventors:

Lawrence M. Scott - Newark CA
Irving Wolf - Los Altos CA
Yu C. Lee - Newark CA

Assignee:

Ampex Corporation - Redwood City CA

International Classification:

B22F 900

US Classification:

75 05BA

Abstract:

Highly orientable acicular iron particles are made by reducing an acicular ferric oxide in powder form by contacting the granular acicular ferric oxide with hydrogen in the presence of a dehydrating agent selected from calcium hydride, calcium, calcium carbide, and mixtures thereof.

US Patent:

60645296, May 16, 2000

Filed:

Jul 2, 1998

Appl. No.:

9/109111

Inventors:

Mark E. McDonald - Mountain View CA
Yu Chuan Lee - Cupertino CA

Assignee:

Optiteck, Inc. - Mountain View CA

International Classification:

G02B 2714

US Classification:

359637

Abstract:

An optical access device for a moving optical data storage media having a flying lens near an outer surface of the media, and an objective lens spaced from the flying lens, with the flying lens and objective lens co-operating to substantially offset a variable range of negative spherical aberration occurring in the media by forming a positive spherical aberration which substantially cancels the negative spherical aberration.

US Patent:

43167381, Feb 23, 1982

Filed:

May 23, 1980

Appl. No.:

6/152899

Inventors:

Irving W. Wolf - Los Altos CA
Michael K. Stafford - Santa Clara CA
Hillard M. Kahan - San Francisco CA
William F. Acebo - Hayward CA
Lawrence M. Scott - Newark CA
Yu C. Lee - Newark CA

Assignee:

Ampex Corporation - Redwood City CA

International Classification:

B22F 900

US Classification:

75 05BA

Abstract:

Highly orientable acicular iron particles are made by reducing an acicular ferric oxide which has been formed into a porous matrix by combining it with sodium tripolyphosphate and reducing the oxide with hydrogen in the presence of a dehydrating agent.

US Patent:

42685400, May 19, 1981

Filed:

Feb 13, 1980

Appl. No.:

6/121196

Inventors:

Lawrence M. Scott - Newark CA
Irving W. Wolf - Los Altos CA
Yu C. Lee - Newark CA

Assignee:

Ampex Corporation - Redwood City CA

International Classification:

B05D 512

US Classification:

427127

Abstract:

Improved particles for magnetic recording are provided by coating gamma ferric oxide with a mixture of barium, strontium, lead or calcium and a trivalent iron oxide. The particles have enhanced coercivity and the coercivity is relatively unaffected by elevated temperatures.

US Patent:

20220407887, Dec 22, 2022

Filed:

Aug 24, 2022

Appl. No.:

17/894637

Inventors:

- San Francisco CA, US
Yu Zhou Lee - San Francisco CA, US
Lawrence Stockton Moore - San Francisco CA, US
Rami Faris Habal - San Francisco CA, US
Lei Xu - New York NY, US

International Classification:

H04L 9/40
G06Q 10/10
G06Q 10/06
H04L 67/30
G06F 16/335
H04L 51/212
H04L 51/214
H04L 67/50
G06F 16/25

Abstract:

Introduced here are computer programs and computer-implemented techniques for generating and then managing a federated database that can be used to ascertain the risk in interacting with vendors. At a high level, the federated database allows knowledge regarding the reputation of vendors to be shared amongst different enterprises with which those vendors may interact. A threat detection platform may utilize the federated database when determining how to handle incoming emails from vendors.

US Patent:

20220278997, Sep 1, 2022

Filed:

Feb 22, 2022

Appl. No.:

17/677822

Inventors:

- San Francisco CA, US
Jeshua Alexis Bratman - San Francisco CA, US
Dmitry Chechik - San Francisco CA, US
Abhijit Bagri - San Francisco CA, US
Evan Reiser - San Francisco CA, US
Sanny Xiao Lang Liao - San Francisco CA, US
Yu Zhou Lee - San Francisco CA, US
Carlos Daniel Gasperi - San Francisco CA, US
Kevin Lau - San Francisco CA, US
Kai Jiang - San Francisco CA, US
Su Li Debbie Tan - San Francisco CA, US
Jeremy Kao - San Francisco CA, US
Cheng-Lin Yeh - San Francisco CA, US

International Classification:

H04L 9/40
G06F 16/955
G06F 16/958
G06N 20/00
G06Q 10/10
G06F 16/951

Abstract:

Conventional email filtering services are not suitable for recognizing sophisticated malicious emails, and therefore may allow sophisticated malicious emails to reach inboxes by mistake. Introduced here are threat detection platforms designed to take an integrative approach to detecting security threats. For example, after receiving input indicative of an approval from an individual to access past email received by employees of an enterprise, a threat detection platform can download past emails to build a machine learning (ML) model that understands the norms of communication with internal contacts (e.g., other employees) and/or external contacts (e.g., vendors). By applying the ML model to incoming email, the threat detection platform can identify security threats in real time in a targeted manner.

US Patent:

20210374679, Dec 2, 2021

Filed:

Aug 12, 2021

Appl. No.:

17/401143

Inventors:

- San Francisco CA, US
Yu Zhou Lee - San Francisco CA, US
Lawrence Stockton Moore - Palo Alto CA, US
Rami Faris Habal - San Francisco CA, US
Lei Xu - New York NY, US

International Classification:

G06Q 10/10
H04L 29/06
H04L 29/08
H04L 12/58
G06Q 10/06
G06F 16/335

Abstract:

Introduced here are computer programs and computer-implemented techniques for generating and then managing a federated database that can be used to ascertain the risk in interacting with vendors. At a high level, the federated database allows knowledge regarding the reputation of vendors to be shared amongst different enterprises with which those vendors may interact. A threat detection platform may utilize the federated database when determining how to handle incoming emails from vendors.

US Patent:

20210374680, Dec 2, 2021

Filed:

Aug 12, 2021

Appl. No.:

17/401161

Inventors:

- San Francisco CA, US
Yu Zhou Lee - San Francisco CA, US
Lawrence Stockton Moore - Palo Alto CA, US
Rami Faris Habal - San Francisco CA, US
Lei Xu - New York NY, US

International Classification:

G06Q 10/10
H04L 29/06
H04L 29/08
H04L 12/58
G06Q 10/06
G06F 16/335

Abstract:

Introduced here are computer programs and computer-implemented techniques for generating and then managing a federated database that can be used to ascertain the risk in interacting with vendors. At a high level, the federated database allows knowledge regarding the reputation of vendors to be shared amongst different enterprises with which those vendors may interact. A threat detection platform may utilize the federated database when determining how to handle incoming emails from vendors.