Inventor
Yuji Akao
Inventor
Tokyo, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Mprimary
C10MLubricating compositions19%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions19%
G04BMechanically-driven clocks or watches9%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents6%
C14CChemical treatment of hides, skins or leather, e.g. tanning, impregnating, finishing6%
C07CAcyclic or carbocyclic compounds3%
C07DHeterocyclic compounds3%
C07HSugars3%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
C11DDetergent compositions3%
PatentTitleYear
10,648,048Hexavalent chromium treatment agent and leather or leather article produced using the same202010,358,686Leather or leather article and method for producing same, hexavalent chromium treatment agent, method for treating hexavalent chromium in crude leather or crude leather article20199,783,758'Lubricating oil composition for timepiece and timepiece'20179,777,242'Lubricating oil composition for timepiece and timepiece'20178,741,820'Lubrication kit and small electronic device using the same'20148,448,475'Skin material for interior material'20137,897,466'Method for manufacturing semiconductor device'20117,385,880'Grease composition for precision equipment and timepiece containing the same'20086,858,567'Lubricating oil composition and watch using the same'20056,794,341'Peak torque lowering composition, part with sliding part using the composition, and press-fitting method using the composition'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2020Patents assigned to CITIZEN WATCH CO LTD (6)· patent assignee history
2004–2005Based in Nishitokyo, JP· patent location history
2008–2017Patents assigned to CITIZEN HOLDINGS CO LTD (3)· patent assignee history
2008–2020Based in Tokyo, JP· patent location history
2011Based in Sakata, JP· patent location history
2013–2014Patents assigned to AKAO YUJI (2)· patent assignee history
2013Based in Fukui, JP· patent location history
2014Patents assigned to CITIZEN ELECTRONICS (1)· patent assignee history
2014Patents assigned to FURUYA MASAHIRO (1)· patent assignee history
2014Based in Nakano-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CITIZEN WATCH CO LTD | 6 | 2004–2020 |
| CITIZEN HOLDINGS CO LTD | 3 | 2008–2017 |
| AKAO YUJIself | 2 | 2013–2014 |
| CITIZEN ELECTRONICS | 1 | 2014 |
| FURUYA MASAHIRO | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 5 | 2008–2020 |
| Nishitokyo, JP | 2 | 2004–2005 |
| Nakano-ku, JP | 1 | 2014 |
| Fukui, JP | 1 | 2013 |
| Sakata, JP | 1 | 2011 |