Aromatic amine derivative and organic electroluminescent element using same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 20, 2018
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Jul 7, 2017
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Dec 16, 2009
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Abstract
An aromatic amine derivative represented by the following formula (1):
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
IDEMITSU KOSAN CO LTD | TOKYO JAPAN TOKYO METROPOLIS |
International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
- H05B:ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE ....
- C07D:HETEROCYCLIC COMPOUNDS
- C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kawamura, Masahiro | Sodegaura, JP | 216 | 8578 |
# of filed Patents : 216 Total Citations : 8578 | |||
Mizuki, Yumiko | Sodegaura, JP | 104 | 2388 |
# of filed Patents : 104 Total Citations : 2388 | |||
Mizutani, Sayaka | Sodegaura, JP | 53 | 502 |
# of filed Patents : 53 Total Citations : 502 |
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- C09K Class
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- 7 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 20, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 20, 2029 |
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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
US Patent No: 4830396
Rear suspension for motor vehicles
Abstract
A rear suspension for motor vehicles comprising two longitudinal arms carrying the rear wheels of the motor vehicle at their rear ends, compression springs and a subframe. The front ends of the longitudinal arms are articulated to the subframe which is fixed to the body of the vehicle. The compression springs are interposed between each arm and the subframe so that the whole suspension can be assembled on the sub-frame before the latter is mounted on to the body. The subframe includes two sheet-metal box-section lateral supports provided with attachments for connecting the subframe to the body and for the articulation of the longitudinal arms. A sheet-metal cross member is rigidly connected at its ends to the two lateral supports. Each compression spring is interposed between and connected to a respective lateral support of the sub-frame. A bracket is rigidly connected to the respective longitudinal arm on an axis parallel to the longitudinal plane of symmetry of the motor vehicle and is substantially horizontal. The sub-frame cross member has a tubular configuration having an axis arranged in front of the axis of articulation of the longitudinal arm. The attachments which connect the subframe to the body include for each lateral support a first attachment provided on the front end of the lateral support for connection to the body of the motor vehicle and a second attachment connected to the lateral support outside of the lateral support on the axis of the tubular cross member.
Description
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Legal Events
Date | Code | Event | Description |
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Nov 01, 2006 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 04, 2006 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 04, 2006 |
Oct 04, 2006 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Apr 19, 2006 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Mar 14, 2002 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Mar 06, 1998 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 07, 1996 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 04, 1994 | I | Issuance | |
Mar 29, 1993 | F | Filing | |
Aug 10, 1990 | PD | Priority Date |

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