Inventor
Richard M. Josephs
Inventor
Willow Grove, PA, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests32%
H03KPulse technique16%
G11CStatic stores12%
H10NElectric solid-state devices not otherwise provided for12%
G01RMeasuring electric variables8%
H01FMagnets8%
C23CCoating metallic material4%
F25DRefrigerators4%
H03FAmplifiers4%
PatentTitleYear
5,136,239'Apparatus for measuring flux and other hysteretic properties in thin film recording discs'19924,816,761'Apparatus for measuring the hysteresis loop of hard magnetic films on large magnetic recording disk'19894,559,459'High gain non-linear threshold input Josephson junction logic circuit'19854,509,146'High density Josephson junction memory circuit'19854,501,975'Josephson junction latch circuit'19854,474,828'Method of controlling the supercurrent of a Josephson junction device'19844,459,823'Rotating liquid nitrogen cooled substrate holder'19844,458,160'High gain Josephson junction voltage amplifier'19844,437,227'Method of making improved tunnel barriers for superconducting Josephson junction devices'19844,413,197'Four Josephson junction direct-coupled and gate circuit'19834,413,196'Three Josephson junction direct coupled isolation circuit'19834,229,806'Consecutive bit bubble memory detector'19804,177,297'Magnetic bubble lattice device'19794,013,803'Fabrication of amorphous bubble film devices'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1979Patents assigned to SPERRY RAND CORP (2)· patent assignee history
1977–1992Based in Willow Grove, PA, US· patent location history
1980–1985Patents assigned to SPERRY CORP (10)· patent assignee history
1989–1992Patents assigned to JOSEPHS RICHARD M (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SPERRY CORP | 10 | 1980–1985 |
| JOSEPHS RICHARD Mself | 2 | 1989–1992 |
| SPERRY RAND CORP | 2 | 1977–1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Willow Grove, Pennsylvania, US | 14 | 1977–1992 |