Internal combustion engine and manufacturing method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Jul 30, 2014
filing date -
Aug 5, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In an internal combustion engine in which an anodic oxide film (10) is formed on part or all of a wall surface facing a combustion chamber, the anodic oxide film (10) has a thickness of 30 μm to 170 μm, the anodic oxide film (10) has first micropores (1a) having a micro-size diameter, nanopores having a nano-size diameter and second micropores (1b) having a micro-size diameter, the first micropores (1a) and the nanopores extending from a surface of the anodic oxide film (10) toward an inside of the anodic oxide film (10) in a thickness direction of the anodic oxide film (10) or substantially the thickness direction, the second micropores (1b) being provided inside the anodic oxide film (10), at least part of the first micropores (1a) and the nanopores are sealed with a seal (2) converted from a sealant (2), and at least part of the second micropores (1b) are not sealed.
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 | |
---|---|---|
TOYOTA JIDOSHA KABUSHIKI KAISHA | TOYOTA-SHI AICHI-KEN 471-8571 |
International Classification(s)

- 2014 Application Filing Year
- C25D Class
- 592 Applications Filed
- 449 Patents Issued To-Date
- 75.85 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Horie, Toshio | Nagakute, JP | 19 | 126 |
# of filed Patents : 19 Total Citations : 126 | |||
Kawaguchi, Akio | Shizuoka-ken, JP | 20 | 213 |
# of filed Patents : 20 Total Citations : 213 | |||
Makino, Hiroshi | Nagoya, JP | 140 | 2859 |
# of filed Patents : 140 Total Citations : 2859 | |||
Nishikawa, Naoki | Miyoshi, JP | 78 | 963 |
# of filed Patents : 78 Total Citations : 963 | |||
Shimizu, Fumio | Nagakute, JP | 55 | 985 |
# of filed Patents : 55 Total Citations : 985 | |||
Takagishi, Reona | Miyoshi, JP | 7 | 8 |
# of filed Patents : 7 Total Citations : 8 | |||
Wakisaka, Yoshifumi | Nagakute, JP | 31 | 193 |
# of filed Patents : 31 Total Citations : 193 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- C25D Class
- 45.04 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

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 | Jul 9, 2025 |
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Jun 23, 2021 | 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 |
Jan 10, 2018 | PD | Priority Date | |
Jan 09, 2018 | I | Issuance | |
Dec 20, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 23, 2016 | P | Published | |
Feb 05, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NISHIKAWA, NAOKI;MAKINO, HIROSHI;TAKAGISHI, REONA;AND OTHERS;SIGNING DATES FROM 20151209 TO 20151225;REEL/FRAME:037672/0391 Owner name: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN |
Jul 30, 2014 | F | Filing |

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