Inventor

Toshihisa Okazaki

Inventor

Odawara, JP

Overview

1997–2018

Patent span

Physics

Primary field (CPC G)

Patents· 20 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer95%

G06FElectric digital data processing5%

PatentTitleYear

10,019,043Hard disk drive with a vibration isolation frame2018 7,643,245'Magnetic disc unit with gap between magnetic disc and shroud'2010 7,336,440'Magnetic disc unit with gap between magnetic disc and shroud'2008 7,330,334'Magnetic disk apparatus with shroud and having open space downstream of moveable arms in communication with bypass channel'2008 7,161,754'Servo pattern writing method and magnetic disk drive for carrying out the same'2007 7,130,151'Disk device and unbalance correcting method thereof'2006 7,072,141'Magnetic disc unit with range of gap between disc and shroud'2006 6,898,049'Magnetic disk apparatus with air flow bypass channel'2005 6,751,050'Magnetic disc unit'2004 6,665,139'Magnetic-disc unit with gap between disc and shroud'2003 6,657,822'Magnetic disk apparatus'2003 6,600,626'Magnetic disk apparatus'2003 6,504,683'Magnetic disk apparatus in which contact between a disk and a carriage arm by an external impact is prevented'2003 6,445,549'Magnetic disk drive'2002 6,353,517'Magnetic disk drive'2002 6,233,120'Magnetic disk device'2001 5,995,327'Magnetic disk device for restraining vibration of head mounting part'1999 5,953,178'Magnetic disk apparatus'1999 5,936,802'Wiring structure in the load beam and guide arm of a magnetic disk drive'1999 5,677,813'Rotary information recording and reproduction apparatus'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–2005Patents assigned to HITACHI LTD (13)· patent assignee history

1997–2010Based in Odawara, JP· patent location history

2006–2010Patents assigned to HITACHI GLOBAL STORAGE TECH (6)· patent assignee history

2018Patents assigned to HGST Netherlands BV (1)· patent assignee history

2018Patents assigned to WESTERN DIGITAL TECH INC (1)· patent assignee history

2018Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	13	1997–2005
HITACHI GLOBAL STORAGE TECH	6	2006–2010
HGST Netherlands BV	1	2018
WESTERN DIGITAL TECH INC	1	2018

Locations

Location	Patents	Span
Odawara, JP	19	1997–2010
Kanagawa, JP	1	2018