Inventor
James H. Nakahara
Inventor
Irvine, CA, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Fprimary
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium35%
C10MLubricating compositions26%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions13%
C01BNon-metallic elements4%
C04BLime, magnesia4%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
C23FNon-mechanical removal of metallic material from surface4%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
5,550,277'Perfluoroalkyl and perfluoroalkylether substituted aromatic phosphates, phosphonates and related compositions'19964,946,809'Precursor for A1NBN ceramic and method of use'19904,559,175'Halo-substituted diphospha-s-triazines and their derivatives'19854,557,869'Dihalo-monophospha-s-triazines and their derivatives'19854,297,510'Unsymmetrical diphosphatetraazacyclooctatetraenes'19814,281,185'Symmetrical diphosphatetraazacyclooctatetraenes'19814,215,072'Diphospha-s-triazines'19804,194,983'Perfluorinated polyalkylether based lubricant composition'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1985Patents assigned to US AIR FORCE (6)· patent assignee history
1980Based in Fountain Valley, CA, US· patent location history
1981–1996Based in Irvine, CA, US· patent location history
1990Patents assigned to ULTRAYSTEMS DEFENSE AND SPACE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| US AIR FORCE | 6 | 1980–1985 |
| ULTRAYSTEMS DEFENSE AND SPACE | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Irvine, California, US | 6 | 1981–1996 |
| Fountain Valley, California, US | 2 | 1980 |