Seat suspension
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 20, 2017
Issued Date -
N/A
app pub date -
Apr 22, 2014
filing date -
Apr 25, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A seat suspension with a compact structure while being capable of coping with input vibrations not only in a vertical direction but in six-axis directions. Three pantograph links between a vehicle body floor side and a seat side are employed. Thus, control in six-axis directions is possible, allowing simplification compared to conventional structures. In addition to an active control mechanism using the pantograph links, the seat suspension has a compressed coil spring and the magnetic spring as a first elastic member and a second elastic member. Specifically, damping is performed with high efficiency by controlling the seat side in a reverse phase to the vehicle body floor side with respect to the input direction of vibrations by the active control mechanism and meanwhile performing damping passively by these elastic members.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | B2 | JP6075914 | Apr 25, 2013 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PUBLISHED GRANTED PATENT (SECOND LEVEL) | シートサスペンション | Feb 08, 2017 | |||
WO | A1 | WO2014175291 | Apr 22, 2014 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | シートサスペンション | Oct 30, 2014 | |||
EP | B1 | EP2990261 | Apr 22, 2014 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
Patent | SEAT SUSPENSION | Sep 11, 2019 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
DELTA TOOLING CO LTD | 1-2-10 YANOSHINMACHI AKIKU HIROSHIMA-SHI HIROSHIMA 7360084 ?7360084 |
International Classification(s)

- 2014 Application Filing Year
- B60N Class
- 981 Applications Filed
- 833 Patents Issued To-Date
- 84.92 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fujita, Etsunori | Higashihiroshima, JP | 141 | 2315 |
# of filed Patents : 141 Total Citations : 2315 | |||
Oshimo, Hiroki | Higashihiroshima, JP | 17 | 222 |
# of filed Patents : 17 Total Citations : 222 |
Cited Art Landscape
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Patent Citation Ranking
- 9 Citation Count
- B60N Class
- 8.01 % 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 | Dec 20, 2024 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 20, 2028 |
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 |
---|---|---|---|
Dec 05, 2024 | 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 |
Dec 02, 2020 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jun 20, 2017 | I | Issuance | |
May 31, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 24, 2016 | P | Published | |
Feb 12, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FUJITA, ETSUNORI;OSHIMO, HIROKI;SIGNING DATES FROM 20150211 TO 20151211;REEL/FRAME:037723/0690 Owner name: DELTA TOOLING CO., LTD., JAPAN |
Dec 11, 2015 | AS | ASSIGNMENT | free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE FIRST ASSIGNOR'S EXECUTION DATE PREVIOUSLY RECORDED AT REEL: 037723 FRAME: 0690. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNORS:FUJITA, ETSUNORI;OSHIMO, HIROKI;REEL/FRAME:039113/0625 Owner name: DELTA TOOLING CO., LTD., JAPAN Effective Date: Dec 11, 2015 |
Apr 22, 2014 | F | Filing | |
Apr 25, 2013 | PD | Priority Date |

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