Inventor

Michiharu Naka

Inventor

Kanagawa, JP

Overview

35→

Patents

1983–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 35 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F16Cprimary

F16CShafts28%

C10MLubricating compositions26%

C10NIndexing scheme associated with subclass c10m relating to lubricating compositions25%

F16NLubricating5%

G11BInformation storage based on relative movement between record carrier and transducer4%

B82YSpecific uses or applications of nanostructures3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

Y10TTechnical subjects covered by former us classification2%

F01CRotary-piston or oscillating-piston machines or engines1%

F04BPositive-displacement machines for liquids1%

PatentTitleYear

RE048187Grease composition for rolling bearing2020 7,265,080'Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system'2007 7,234,872'Rolling Bearing'2007 7,135,441'Lubricating grease composition and rolling apparatus'2006 7,029,181'Rolling bearing and fan motor using the same'2006 6,898,959'Lubricant applying system for a rolling bearing'2005 6,880,978'Rolling bearing for hard disk drive'2005 6,820,724'Lubricant applying system for a rolling bearing'2004 6,777,022'Lubricant applying system for a rolling bearing'2004 6,755,071'Lubricant applying system for a rolling bearing'2004 6,727,207'Rolling bearing'2004 6,689,721'Conductive grease and rolling apparatus packed with the same'2004 6,682,223'Ball bearing'2004 6,589,918'Conductive grease and rolling apparatus packed with the same'2003 6,582,130'Rolling bearing and bearing apparatus'2003 6,568,856'Rolling bearing'2003 6,482,780'Grease composition for rolling bearing'2002 6,482,779'Lubricating grease composition and rolling apparatus comprising same'2002 6,477,885'Lubricant applying system for a rolling bearing'2002 6,352,961'Grease composition for rolling bearing'2002 6,340,244'Rolling bearing for hard disk drive'2002 6,251,841'Grease composition'2001 5,922,654'Lubricant composition'1999 5,840,666'Grease composition'1998 5,728,659'Grease compositions for rolling bearing'1998 5,714,444'Grease composition'1998 5,707,944'Grease composition'1998 5,656,582'Rust preventive lubricating oil'1997 5,640,769'Method for producing a cage of the ball bearing'1997 5,575,570'Cage for rolling bearing'1996 5,498,357'Grease composition for high-temperature, high-speed and high-load bearings'1996 5,462,684'Grease composition containing alkyl diphenyl ether oil and diurea thickener'1995 5,401,105'Ball bearing and method for producing a cage of the ball bearing'1995 5,059,336'Grease composition for high speed anti-friction bearing'1991 4,410,435'Lithium complex grease and its producing method'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1991Patents assigned to NIPPON SEIKO KK (2)· patent assignee history

1983Based in Fujisawa, JP· patent location history

1991–1998Patents assigned to NIPPON OIL CO LTD (3)· patent assignee history

1991–1998Based in Odawara, JP· patent location history

1995–2020Patents assigned to NSK LTD (33)· patent assignee history

1995–2020Based in Kanagawa, JP· patent location history

1996–2020Patents assigned to KYODO YUSHI (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NSK LTD	33	1995–2020
KYODO YUSHI	6	1996–2020
NIPPON OIL CO LTD	3	1991–1998
NIPPON SEIKO KK	2	1983–1991

Locations

Location	Patents	Span
Kanagawa, JP	30	1995–2020
Odawara, JP	4	1991–1998
Fujisawa, JP	1	1983