Micro mixer and microfluidic chip
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 1, 2015
Grant Date -
Aug 9, 2012
app pub date -
Dec 13, 2010
filing date -
Sep 25, 2009
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
There are provided a micro mixer capable of efficiently mixing at least two types of liquids in a simple structure and a microfluidic chip provided with the micro mixer. In order to achieve the object, the micro mixer includes a minute passage through which first and second liquids are caused to flow respectively, and a mixing vessel in which a liquid injecting port caused to communicate with the minute passage is provided in a bottom part, and the liquid injecting port is provided in a shifted position from a center of the bottom part in the bottom part. Moreover, the liquid injecting port may be provided in a shifted position from a center line of the mixing vessel.
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 | |
---|---|---|
OTSUKA PHARMACEUTICAL CO LTD | TOKYO JAPAN TOKYO METROPOLIS |
International Classification(s)

- 2010 Application Filing Year
- B01L Class
- 470 Applications Filed
- 374 Patents Issued To-Date
- 79.58 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Higashino, Kusunoki | Osaka, JP | 61 | 630 |
# of filed Patents : 61 Total Citations : 630 | |||
Miyata, Kenichi | Amagasaki, JP | 43 | 741 |
# of filed Patents : 43 Total Citations : 741 | |||
Mohri, Takahiro | Izumi, JP | 2 | 18 |
# of filed Patents : 2 Total Citations : 18 | |||
Nishikado, Masashi | Osaka, JP | 13 | 376 |
# of filed Patents : 13 Total Citations : 376 | |||
Sando, Yasuhiro | Amagasaka, JP | 57 | 594 |
# of filed Patents : 57 Total Citations : 594 | |||
Yanagihara, Gou | Sakai, JP | 2 | 18 |
# of filed Patents : 2 Total Citations : 18 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 4 Citation Count
- B01L Class
- 9.16 % this patent is cited more than
- 10 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 1, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
---|---|---|---|
Feb 15, 2025 | PD | Priority Date | |
Feb 22, 2023 | 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 |
Feb 14, 2019 | 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 |
Sep 01, 2015 | I | Issuance | |
Aug 27, 2015 | P | Published | |
Aug 12, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 27, 2014 | F | Filing | |
Feb 27, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WU, KO-JEN;HAYMAN, ALAN W.;REEL/FRAME:032317/0198 Owner name: GM GLOBAL TECHNOLOGY OPERATIONS LLC, MICHIGAN Effective Date: Feb 27, 2014 |

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