Patents by Inventor Masaaki Akamine
Masaaki Akamine has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11850780Abstract: A resin member includes: a resin substrate; and a micro-embossed pattern and having a plurality of recesses and a plurality of protrusions. The plurality of protrusions includes: a plurality of first protrusions; and a plurality of second protrusions having a height of from ¼ to ¾ of the height of the first protrusions. A distance between peaks of two adjacent ones of the plurality of protrusions ranges from 100 ?m to 500 ?m. The number of the minute regions having an angle of inclination of from ?10° to 10° with respect to the reference plane ranges from 78% to 95% of the number of all of the minute regions included in the micro-embossed pattern corresponding to the predetermined distance, and the number of the minute regions having an angle of inclination of from ?1° to 1° ranges from 25% to 40% of the number of all of the minute regions.Type: GrantFiled: November 15, 2019Date of Patent: December 26, 2023Assignee: MAZDA MOTOR CORPORATIONInventors: Sakura Nakano, Masaaki Akamine, Kaname Sawai, Akihiro Hosono, Shuhei Narita, Yu Tanaka
-
Publication number: 20220251402Abstract: The present disclosure keeps a topcoat film 3 from having a dent 6 in a portion of its surface corresponding to a pinhole 4 of a resin molded product 1. A method of the present disclosure includes: applying an undercoat material to a resin molded product 1 to form an undercoat film 2; applying a topcoat material to a surface of the undercoat film 2 to form a topcoat film 3; and thermally curing the topcoat film 3. A coating material that contains a base resin having a larger volume expansion coefficient than the resin molded product 1 and a granular filler having a smaller volume expansion coefficient than the base resin and a number-average particle size of 2 ?m or more to 12 ?m or less is used as the undercoat material.Type: ApplicationFiled: December 23, 2021Publication date: August 11, 2022Applicant: MAZDA MOTOR CORPORATIONInventors: Masaya MINATO, Hiroshi KUBOTA, Masaaki AKAMINE, Yushi MATSUDA, Kazuhiro FURUTA, Takahiro TANAKA, Akira ANDOU, Tomohiro NAGANO
-
Patent number: 11254800Abstract: A coating of an outer plate contains a perylene-based pigment, and satisfies (ROH(P)/ROH(OA))?74, where ROH(P) is the highlight reflectance of the coating of the outer plate at a peak wavelength at which reflectance reaches the maximum value in a spectral reflectance curve, and ROH(OA) is the average highlight reflectance of the coating of the outer plate in a complementary wavelength range. A coating of an inner plate part contains a perylene-based pigment and an iron oxide-based pigment, the content of the perylene-based pigment in the coating of the inner plate part is in units of PWC, and the mass ratio of the content of the iron oxide-based pigment to the content of the perylene-based pigment in the coating of the inner plate part is 3-20%.Type: GrantFiled: December 9, 2019Date of Patent: February 22, 2022Assignee: MAZDA MOTOR CORPORATIONInventors: Sakura Nakano, Masaaki Akamine, Kenta Okada, Hiroshi Kubota
-
Publication number: 20220024095Abstract: A resin member includes: a resin substrate; and a micro-embossed pattern and having a plurality of recesses and a plurality of protrusions. The plurality of protrusions includes: a plurality of first protrusions; and a plurality of second protrusions having a height of from ¼ to ¾ of the height of the first protrusions. A distance between peaks of two adjacent ones of the plurality of protrusions ranges from 100 ?m to 500 ?m. The number of the minute regions having an angle of inclination of from ?10° to 10° with respect to the reference plane ranges from 78% to 95% of the number of all of the minute regions included in the micro-embossed pattern corresponding to the predetermined distance, and the number of the minute regions having an angle of inclination of from ?1° to 1° ranges from 25% to 40% of the number of all of the minute regions.Type: ApplicationFiled: November 15, 2019Publication date: January 27, 2022Applicant: MAZDA MOTOR CORPORATIONInventors: Sakura NAKANO, Masaaki AKAMINE, Kaname SAWAI, Akihiro HOSONO, Shuhei NARITA, Yu TANAKA
-
Publication number: 20200109255Abstract: A coating of an outer plate contains a perylene-based pigment, and satisfies (ROH(P)/ROH(OA))?74, where ROH(P) is the highlight reflectance of the coating of the outer plate at a peak wavelength at which reflectance reaches the maximum value in a spectral reflectance curve, and ROH(OA) is the average highlight reflectance of the coating of the outer plate in a complementary wavelength range. A coating of an inner plate part contains a perylene-based pigment and an iron oxide-based pigment, the content of the perylene-based pigment in the coating of the inner plate part is in units of PWC, and the mass ratio of the content of the iron oxide-based pigment to the content of the perylene-based pigment in the coating of the inner plate part is 3-20%.Type: ApplicationFiled: December 9, 2019Publication date: April 9, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Sakura NAKANO, Masaaki AKAMINE, Kenta OKADA, Hiroshi KUBOTA
-
Publication number: 20180127565Abstract: A coating of an outer plate contains a perylene-based pigment, and satisfies (ROH(P)/ROH(OA))?74, where ROH(P) is the highlight reflectance of the coating of the outer plate at a peak wavelength at which reflectance reaches the maximum value in a spectral reflectance curve, and ROH(OA) is the average highlight reflectance of the coating of the outer plate in a complementary wavelength range. A coating of an inner plate part contains a perylene-based pigment and an iron oxide-based pigment, the content of the perylene-based pigment in the coating of the inner plate part is in units of PWC, and the mass ratio of the content of the iron oxide-based pigment to the content of the perylene-based pigment in the coating of the inner plate part is 3-20%.Type: ApplicationFiled: January 10, 2018Publication date: May 10, 2018Applicant: MAZDA MOTOR CORPORATIONInventors: Sakura NAKANO, Masaaki AKAMINE, Kenta OKADA, Hiroshi KUBOTA
-
Patent number: 9415383Abstract: An exhaust gas purification catalyst includes a catalytic layer on a carrier, in which a particle component A and a particle component B are mixed. The particle component A is composed of catalytic-metal-doped CeZr-based mixed oxide powder, and has a particle size distribution with a peak in a particle size range of equal to or greater than 100 nm and equal to or less than 300 nm. A CeO2/(CeO2+ZrO2) mass ratio of CeZr-based mixed oxide is equal to or greater than 30% and equal to or less than 75%. The particle component B is composed of at least one selected from a group consisting of activated alumina powder, Zr-based-oxide-supported alumina powder, and catalytic-metal-undoped CeZr-based mixed oxide powder. At least a part of particles of the particle component B has a particle size larger than that of the particle component A.Type: GrantFiled: May 25, 2011Date of Patent: August 16, 2016Assignee: MAZDA MOTOR CORPORATIONInventors: Masaaki Akamine, Masahiko Shigetsu
-
Patent number: 9266093Abstract: An exhaust gas purification catalyst includes a Rh-containing catalyst layer provided on a base material. The Rh-containing catalyst layer includes Rh-supporting Zr-based composite oxide in which Rh6 is supported on Zr-based composite oxide containing Zr and a rare earth metal except Ce. The Rh-supporting Zr-based composite oxide has been previously subjected to a reduction treatment.Type: GrantFiled: February 18, 2014Date of Patent: February 23, 2016Assignee: MAZDA MOTOR CORPORATIONInventors: Yasuhiro Matsumura, Akihide Takami, Masahiko Shigetsu, Hisaya Kawabata, Masaaki Akamine
-
Patent number: 9174198Abstract: An exhaust gas purification catalytic material for purifying exhaust gas from an engine includes ZrLaY composite oxide containing ZrO2 as a main component, 2% by mass or more and 10% by mass or less of La2O3, and 2% by mass or more and 20% by mass or less of Y2O3, and Rh is loaded on the composite oxide.Type: GrantFiled: March 14, 2013Date of Patent: November 3, 2015Assignee: Mazda Motor CorporationInventors: Hisaya Kawabata, Masaaki Akamine, Yasuhiro Matsumura, Masahiko Shigetsu, Akihide Takami
-
Patent number: 9144788Abstract: An exhaust gas purification catalyst includes a Rh-containing catalyst layer provided on a base material. The Rh-containing catalyst layer includes a binder material of Rh-doped CeZr-based composite oxide containing Ce and Zr and doped with Rh. The binder material has been previously subjected to a reduction treatment.Type: GrantFiled: February 18, 2014Date of Patent: September 29, 2015Assignee: Mazda Motor CorporationInventors: Yasuhiro Matsumura, Akihide Takami, Masahiko Shigetsu, Hisaya Kawabata, Masaaki Akamine, Yuki Murakami
-
Publication number: 20150147566Abstract: A coating of an outer plate contains a perylene-based pigment, and satisfies (ROH(P)/ROH(OA))?74, where ROH(P) is the highlight reflectance of the coating of the outer plate at a peak wavelength at which reflectance reaches the maximum value in a spectral reflectance curve, and ROH(OA) is the average highlight reflectance of the coating of the outer plate in a complementary wavelength range. A coating of an inner plate part contains a perylene-based pigment and an iron oxide-based pigment, the content of the perylene-based pigment in the coating of the inner plate part is in units of PWC, and the mass ratio of the content of the iron oxide-based pigment to the content of the perylene-based pigment in the coating of the inner plate part is 3-20%.Type: ApplicationFiled: February 6, 2014Publication date: May 28, 2015Applicant: MAZDA MOTOR CORPORATIONInventors: Sakura Nakano, Masaaki Akamine, Kenta Okada, Hiroshi Kubota
-
Publication number: 20150087503Abstract: An exhaust gas purification catalytic material for purifying exhaust gas from an engine includes ZrLaY composite oxide containing ZrO2 as a main component, 2% by mass or more and 10% by mass or less of La2O3, and 2% by mass or more and 20% by mass or less of Y2O3, and Rh is loaded on the composite oxide.Type: ApplicationFiled: March 14, 2013Publication date: March 26, 2015Applicant: MAZDA MOTOR CORPORATIONInventors: Hisaya Kawabata, Masaaki Akamine, Yasuhiro Matsumura, Masahiko Shigetsu, Akihide Takami
-
Patent number: 8932982Abstract: An exhaust gas purification catalyst includes a catalytic layer containing a particle component A-1 and a particle component A-2 with different catalytic metal contents, each of which is composed of catalytic-metal-doped CeZr-based mixed oxide powder. The particle component A-1 having the lower catalytic metal content is supported on a particle component B composed of Zr-based-oxide-supported alumina powder, and the particle component A-2 having the higher catalytic metal content is supported on a particle component C composed of CeZr-based mixed oxide powder in which catalytic metal is not solid-dissolved.Type: GrantFiled: May 25, 2011Date of Patent: January 13, 2015Assignee: Mazda Motor CorporationInventors: Masaaki Akamine, Masahiko Shigetsu, Yasuhiro Ochi, Yuki Murakami
-
Patent number: 8912116Abstract: A catalyst layer includes: a first mixed oxide particle component 4 which contains Ce and Rh 8 and in which Rh is partially exposed at particle surfaces; and a second mixed oxide particle component 5 containing Ce, Zr, and a rare earth metal except Ce. The particle size distribution of the first mixed oxide particle component 4 has a peak in the particle size range from 100 nm to 300 nm, both inclusive. The particle size distribution of the second mixed oxide particle component 5 has a peak in a particle size range larger than the particle size range in which the first mixed oxide particle component 4 has the peak. At least part of particles of the first mixed oxide particle component 4 is attached to at least part of particles of the second mixed oxide particle component 5.Type: GrantFiled: July 29, 2010Date of Patent: December 16, 2014Assignee: Mazda Motor CorporationInventors: Masaaki Akamine, Hideharu Iwakuni, Hisaya Kawabata, Yasuhiro Ochi, Yuki Murakami, Susumu Mineoi, Akihide Takami, Masahiko Shigetsu
-
Publication number: 20140235434Abstract: An exhaust gas purification catalyst includes a Rh-containing catalyst layer provided on a base material. The Rh-containing catalyst layer includes a binder material of Rh-doped CeZr-based composite oxide containing Ce and Zr and doped with Rh. The binder material has been previously subjected to a reduction treatment.Type: ApplicationFiled: February 18, 2014Publication date: August 21, 2014Applicant: MAZDA MOTOR CORPORATIONInventors: Yasuhiro MATSUMURA, Akihide TAKAMI, Masahiko SHIGETSU, Hisaya KAWABATA, Masaaki AKAMINE, Yuki MURAKAMI
-
Publication number: 20140235433Abstract: An exhaust gas purification catalyst includes a Rh-containing catalyst layer provided on a base material. The Rh-containing catalyst layer includes Rh-supporting Zr-based composite oxide in which Rh6 is supported on Zr-based composite oxide containing Zr and a rare earth metal except Ce. The Rh-supporting Zr-based composite oxide has been previously subjected to a reduction treatment.Type: ApplicationFiled: February 18, 2014Publication date: August 21, 2014Applicant: MAZDA MOTOR CORPORATIONInventors: Yasuhiro MATSUMURA, Akihide TAKAMI, Masahiko SHIGETSU, Hisaya KAWABATA, Masaaki AKAMINE
-
Patent number: 8713921Abstract: An upper catalyst layer of an upstream catalyst 3 and a downstream catalyst 5 includes an oxygen storage/release material in/on which a catalytic metal is included or loaded. The content of the oxygen storage/release material per 1 L of a substrate in the catalyst layer of the upstream catalyst 3 is larger than that in the catalyst layer of the downstream catalyst 5. The oxygen release amount per a unit amount of the Rh is larger than that for the upper catalyst layer of the upstream catalyst 5. At least part of the oxygen storage/release material included in the downstream catalyst shows a particle size distribution having a peak particle size smaller than that in the upstream catalyst 5.Type: GrantFiled: January 18, 2012Date of Patent: May 6, 2014Assignee: Mazda Motor CorporationInventors: Masaaki Akamine, Masahiko Shigetsu
-
Patent number: 8679411Abstract: A Rh-including catalyst layer of an upstream catalyst 3 includes Rh-doped CeZr-based mixed oxide and Rh-loading CeZr-based mixed oxide as oxygen storage/release materials. A Rh-including catalyst layer of a downstream catalyst 5 includes only Rh-doped CeZr-based mixed oxide as an oxygen storage/release material. The content of the oxygen storage/release materials included in the Rh-including catalyst layer of the upstream catalyst 3 is smaller than that of the downstream catalyst 5. The Rh-doped CeZr-based mixed oxide of the upstream catalyst 3 shows a particle size distribution having a peak particle size smaller than that of the Rh-doped CeZr-based mixed oxide of the downstream catalyst 5.Type: GrantFiled: January 18, 2012Date of Patent: March 25, 2014Assignee: Mazda Motor CorporationInventors: Masaaki Akamine, Masahiko Shigetsu
-
Publication number: 20120189503Abstract: A Rh-including catalyst layer of an upstream catalyst 3 includes Rh-doped CeZr-based mixed oxide and Rh-loading CeZr-based mixed oxide as oxygen storage/release materials. A Rh-including catalyst layer of a downstream catalyst 5 includes only Rh-doped CeZr-based mixed oxide as an oxygen storage/release material. The content of the oxygen storage/release materials included in the Rh-including catalyst layer of the upstream catalyst 3 is smaller than that of the downstream catalyst 5. The Rh-doped CeZr-based mixed oxide of the upstream catalyst 3 shows a particle size distribution having a peak particle size smaller than that of the Rh-doped CeZr-based mixed oxide of the downstream catalyst 5.Type: ApplicationFiled: January 18, 2012Publication date: July 26, 2012Applicant: MAZDA MOTOR CORPORATIONInventors: Masaaki AKAMINE, Masahiko SHIGETSU
-
Publication number: 20120186238Abstract: An upper catalyst layer of an upstream catalyst 3 and a downstream catalyst 5 includes an oxygen storage/release material in/on which a catalytic metal is included or loaded. The content of the oxygen storage/release material per 1 L of a substrate in the catalyst layer of the upstream catalyst 3 is larger than that in the catalyst layer of the downstream catalyst 5. The oxygen release amount per a unit amount of the Rh is larger than that for the upper catalyst layer of the upstream catalyst 5. At least part of the oxygen storage/release material included in the downstream catalyst shows a particle size distribution having a peak particle size smaller than that in the upstream catalyst 5.Type: ApplicationFiled: January 18, 2012Publication date: July 26, 2012Applicant: MAZDA MOTOR CORPORATIONInventors: Masaaki AKAMINE, Masahiko SHIGETSU