Thermally-assisted magnetic recording head including a main pole and a plasmon generator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 7, 2017
Issued Date -
N/A
app pub date -
Jan 20, 2015
filing date -
Jan 20, 2015
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A thermally-assisted magnetic recording head includes a main pole and a plasmon generator. The main pole has a front end face located in the medium facing surface. The plasmon generator has a near-field light generating surface located in the medium facing surface. The front end face of the main pole includes a first end face portion and a second end face portion. The second end face portion is located farther from the near-field light generating surface than is the first end face portion, and is greater than the first end face portion in width in the track width direction. The first end face portion and the near-field light generating surface are equal in width.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
HEADWAY TECHNOLOGIES INC | 682 S HILLVIEW DRIVE MILPITAS CA 95035 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Araki, Hironori | Milpitas, US | 142 | 1464 |
# of filed Patents : 142 Total Citations : 1464 | |||
Ito, Hiroyuki | Milpitas, US | 540 | 5295 |
# of filed Patents : 540 Total Citations : 5295 | |||
Mamiya, Hideo | Milpitas, US | 16 | 93 |
# of filed Patents : 16 Total Citations : 93 | |||
Sasaki, Yoshitaka | Santa Clara, US | 531 | 5984 |
# of filed Patents : 531 Total Citations : 5984 | |||
Tanemura, Shigeki | Milpitas, US | 173 | 1911 |
# of filed Patents : 173 Total Citations : 1911 | |||
Tomita, Seiichiro | Milpitas, US | 31 | 164 |
# of filed Patents : 31 Total Citations : 164 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- G11B Class
- 20.67 % this patent is cited more than
- 8 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 7, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 7, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
May 04, 2022 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
May 03, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551) year of fee payment: 4 |
Nov 18, 2014 | I | Issuance | |
Oct 29, 2014 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Nov 28, 2013 | P | Published | |
Oct 31, 2013 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
May 02, 2013 | F | Filing | |
Apr 24, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KONISHI, MARI;INAGAKI, KEIICHI;FUJITA, TOSHIYUKI;REEL/FRAME:030335/0497 Owner name: KONICA MINOLTA, INC., JAPAN Effective Date: Apr 24, 2013 |
May 24, 2012 | PD | Priority Date |

Matter Detail

Renewals Detail
