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1. 发明公开

EP4234403A1 AIRCRAFT RESTROOM UNIT 审中-实审
公开(公告)号：EP4234403A1
公开(公告)日：2023-08-30
申请号：EP21882369.8
申请日：2021-04-30
申请人： The Yokohama Rubber Co., Ltd.
发明人： NAKAO, Kazushi
IPC分类号： B64D11/02 , B05B15/625
摘要： Provided is an aircraft lavatory unit that enables passengers to disinfect their hands and fingers every time they use the aircraft lavatory unit and is advantageous in preventing infections with a novel coronavirus in a cabin. A structural frame (22A) of an aircraft lavatory unit (22) includes a first side wall (2206) facing a latitudinal aisle (20), and boarding entrances (24) are located at both ends of the latitudinal aisle (20). A pump-type bottle (30) that can discharge a disinfectant for hands and fingers is disposed at the first side wall (2206) at a height at which a passenger can push down a head portion (3016) thereof.

2. 发明公开

EP4201711A1 TIRE 审中-实审转让
公开(公告)号：EP4201711A1
公开(公告)日：2023-06-28
申请号：EP21861568.0
申请日：2021-08-24
申请人： The Yokohama Rubber Co., Ltd.
发明人： ISHIZU, Kento
IPC分类号： B60C11/13 , B60C5/00 , B60C11/03
摘要： Provided are a second land portion (32) defined by a shoulder main groove (21) and a center main groove (22) extending in a tire circumferential direction, and a plurality of sets of a first lug groove (321) and a second lug groove (322) that extend in the second land portion (32) in a tire width direction and are disposed alternately in the tire circumferential direction. The first lug groove (321) has one end that opens to the shoulder main groove (21) and an other end that terminates inside the second land portion (32) in which the groove width on one end side is formed wider than the groove width on the other end side, and the second lug groove (322) has one end that opens to the center main groove (22) and an other end that terminates inside the second land portion (32) in which the groove width on one end side is formed narrower than the groove width on the other end side and the one end side of the second lug groove (322) that is formed narrower is closed at ground contact.

3. 发明公开

EP4201707A1 TIRE 审中-实审转让
公开(公告)号：EP4201707A1
公开(公告)日：2023-06-28
申请号：EP21858271.6
申请日：2021-08-16
申请人： The Yokohama Rubber Co., Ltd.
发明人： KOISHIKAWA, Yoshifumi
IPC分类号： B60C11/03 , B60C11/12
摘要： To suppress a decrease in performance on ice and snow during wear of a tread portion (10), a pneumatic tire (1) includes a circumferential main groove (20) extending in a tire circumferential direction, a land portion (30) defined by the circumferential main grooves (20), and a sipe (4) disposed in the land portion (30). The sipe (4) is formed in a zigzag shape that has an amplitude in a width direction of the sipe (4) while extending in a longitudinal direction of the sipe (4). A magnitude of the amplitude changes according to a position in a depth direction of the sipe (4). A depth (Dp) of a maximum amplitude portion (45) from an opening portion (41) of the sipe (4) in the depth direction of the sipe (4) is located at a position 30% or more of a maximum depth (Ds) of the sipe (4). The maximum amplitude portion (45) is a portion where a magnitude of the amplitude is maximum.

4. 发明公开

EP4191109A1 MARINE HOSE FLUID LEAKAGE DETECTION SYSTEM 审中-实审转让
公开(公告)号：EP4191109A1
公开(公告)日：2023-06-07
申请号：EP23154402.4
申请日：2020-02-14
申请人： The Yokohama Rubber Co., Ltd.
发明人： ISHIBASHI, Yusuke
IPC分类号： F16L11/08 , G01M3/36 , G01M3/04 , G01M3/18
摘要： Provided is a marine hose fluid leakage detection system capable of more reliably detecting leakage of a specific fluid such as refined oil flowing through a marine hose without substantially changing the hose structure.
When a fluid (L) flowing through a flow channel (1a) flows into a fluid retention layer (7) interposed between an inner circumferential reinforcing layer (4) and an outer circumferential reinforcing layer (6), an IC tag (10) of a passive type installed in the fluid retention layer (7) at a predetermined longitudinal position of a marine hose (1) is immersed or surrounded in the fluid (L). Then, a cover layer (13) of the IC tag (10), being formed of a soluble member that is dissolvable by the fluid (L), is dissolved to reduce an area of the cover layer (13) that blocks radio waves (W1) and (W2). Accordingly, the radio waves (W2) transmitted from the IC tag (10) in response to the radio waves (W1) transmitted from a radio wave transmitter (14a) disposed outside the marine hose (1) change in strength. This enables a determination whether the fluid (L) leaks from the flow channel (1a), based on the strength of the radio waves (W2) received by a radio wave receiver (14b).

5. 发明公开

EP4174149A1 SEALANT COMPOSITION 审中-实审转让
公开(公告)号：EP4174149A1
公开(公告)日：2023-05-03
申请号：EP21825068.6
申请日：2021-07-14
申请人： The Yokohama Rubber Co., Ltd.
发明人： TAKAHASHI, Kiyohito
IPC分类号： C09K3/10 , B60C19/12
摘要： Provided is a sealant composition that can ensure good sealing properties while suppressing a flow of a sealant during travel and that can provide such performance in a well-balanced, compatible manner. As a sealant composition constituting a sealant layer (10) disposed in an inner surface of a pneumatic tire, a sealant composition in which a proportion (A) of toluene insoluble occupying the sealant composition is from 30 mass% to 60 mass% is used, or a sealant composition in which a ratio (d1/d2) of measured specific gravity (d1) of the sealant composition measured by an underwater replacement method to calculated specific gravity (d2) of the sealant composition calculated from specific gravity and a blended amount of each raw material in the sealant composition is from 0.7 to 0.9 is used.

6. 发明公开

EP4159476A1 TIRE RUBBER COMPOSITION AND TIRE 审中-实审转让
公开(公告)号：EP4159476A1
公开(公告)日：2023-04-05
申请号：EP21813237.1
申请日：2021-05-28
申请人： The Yokohama Rubber Co., Ltd.
发明人： SATO, Masaki , SAWA, Hideaki , ITO, Keisuke , IZUNO, Kakeru
IPC分类号： B60C1/00 , C08C19/25 , C08F297/04 , C08K5/541 , C08L7/00 , C08L15/00 , C08L53/02 , C08L101/12 , C08K3/32 , C08K3/36
摘要： An object of the present invention is to provide a rubber composition of a tire that is excellent in crack growth resistance, groove cracking resistance, wear resistance, and chipping resistance and a tire using the rubber composition of the tire. In the rubber composition of the tire, a composition according to an embodiment of the present invention contains a rubber component, a silica, and a silane coupling agent. In the rubber component, a specific conjugated diene rubber is a conjugated diene rubber. The specific conjugated diene rubber has the content of 35 mass% or more and a natural rubber has the content of 10 mass% or more. The specific conjugated diene rubber includes a block (A) containing an isoprene unit and a block (B) containing a 1,3-butadiene unit and has a modified structure by a siloxane compound at a terminal. At least one of (A) and (B) contains a unit of a vinyl compound containing an amino group. (Mw) of (A) is from 1000 to 30000 and entire (Mw) is from 50000 to 5000000. An entire aromatic vinyl content is from 30 to 45 mass%. An entire vinyl bond content is from 15 to 35 mass%.

7. 发明公开

EP4000850A1 TIRE VULCANIZATION BLADDER 审中-实审转让
公开(公告)号：EP4000850A1
公开(公告)日：2022-05-25
申请号：EP20841018.3
申请日：2020-07-14
申请人： The Yokohama Rubber Co., Ltd.
发明人： OZAKI Ayako , ISHIKAWA Kazunori
IPC分类号： B29C33/02
摘要： To provide a tire vulcanization bladder that includes a coating layer formed from a release agent and that makes it possible to improve productivity by suppressing peeling off of the coating layer. A primer layer (21b) is provided on an outer surface of a bladder body (21a), a coating layer (21c) is provided on an outer side of the primer layer (21b), the bladder body (21a) is formed from a rubber composition containing 50 mass% or more of a butyl rubber in a rubber component, the coating layer (21c) is formed from a release agent containing a silicone component, and the primer layer (21b) is formed from a silane compound having an alkoxy group and an amino group.

8. 发明公开

EP3995303A1 TIRE VULCANIZATION MOLD AND MANUFACTURING METHOD FOR TIRE 审中-实审转让
公开(公告)号：EP3995303A1
公开(公告)日：2022-05-11
申请号：EP20834539.7
申请日：2020-07-01
申请人： The Yokohama Rubber Co., Ltd.
发明人： KITAHARA, Tsubasa , MATSUMOTO, Yoshiaki , NAGASHIMA, Mika , TSUJI, Mitsuo , IZUMI, Yoshinori , KUSHIDA, Rinko , MIYOSHI, Koichiro
IPC分类号： B29L30/00 , B29C33/02 , B29C33/72 , B29C35/02
摘要： A tire vulcanization mold and a method of manufacturing a tire using the mold that can ensure good tire performance while avoiding a problem of rubber chip formation in the tire over a long period of time are provided.
A tire vulcanization mold (1) in which a surface roughness (Ra) in the groove molding portion (4) of the tread molding surface (3) is made smaller than a surface roughness (Ra) in the land portion molding portion (5), in which a surface roughness (Ra) in the groove molding portion (4) is minimized to 0.12 µm or less in a range including at least a main groove molding portion (4a), and in which a surface roughness (Ra) in the land portion molding portion (5) is made to be 3.2 µm or more, is used to manufacture a green tire (TG), and when cleaning the tread molding surface (3), the tread molding surface (3) is irradiated with a laser beam (L) to remove contaminant (X) adhered to the tread molding surface (3).

9. 发明公开

EP3981831A1 SEALANT MATERIAL COMPOSITION 审中-实审转让
公开(公告)号：EP3981831A1
公开(公告)日：2022-04-13
申请号：EP20819242.7
申请日：2020-06-03
申请人： The Yokohama Rubber Co., Ltd.
发明人： TAKAHASHI, Kiyohito
IPC分类号： C08K5/40 , C08L23/22 , C08L23/28 , C08L91/00 , C09K3/10 , C08K3/06
摘要： Provided is a sealant material composition that makes it possible to ensure good sealing properties and to suppress sealant flow due to traveling. As a sealant material composition forming a sealant layer disposed on an inner surface of a pneumatic tire, the sealant material composition comprising from 1 part by mass to 40 parts by mass of an organic peroxide and from 0.1 parts by mass to 40 parts by mass of a crosslinking agent, being blended, per 100 parts by mass of a rubber component containing more than 10 mass% of a non-halogenated butyl rubber, is used.

10. 发明公开

EP3960502A1 PNEUMATIC TIRE 审中-实审转让
公开(公告)号：EP3960502A1
公开(公告)日：2022-03-02
申请号：EP20794315.0
申请日：2020-04-03
申请人： The Yokohama Rubber Co., Ltd.
发明人： HARADA, Shunya
IPC分类号： B60C11/03
摘要： In a pneumatic tire (1), a plurality of first land portions (3A) are arrayed adjacent to each other in a tire circumferential direction, and a plurality of second land portions (3B) are arrayed adjacent to each other in the tire circumferential direction. Moreover, the first land portions (3A) and the second land portions (3B) are each arrayed in a staggered manner along a tire equatorial plane (CL). Additionally, the first land portions (3A) and the second land portions (3B) each include a plurality of through grooves (41) to (43) that extend through the land portions (3A), (3B) and open to the pair of inclined main grooves and a plurality of blocks defined by the through grooves (41) to (43).

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