公开(公告)号：US11168170B2

公开(公告)日：2021-11-09

申请号：US16607825

申请日：2018-04-25

Applicant: KYOTO UNIVERSITY ,  NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY ,  NATIONAL INSTITUTE OF TECHNOLOGY

Inventor： Chiharu Tadokoro ,  Takuo Nagamine ,  Yoshinobu Tsujii ,  Keita Sakakibara ,  Ken Nakano ,  Hitoshi Hattori ,  Shinya Sasaki ,  Takaya Sato

IPC: C08F292/00

Abstract: A clearance narrowing material containing a brush-shaped polymer chain aggregate formed of multiple polymer chains immobilized on a substrate. The invention provides a clearance narrowing material which can effectively prevent fluid leakage through a clearance and which does not disturb relative movement of members to form a clearance, and can realize an article in which fluid leakage through a clearance can be effectively prevented and the members to form a clearance can move smoothly.

公开(公告)号：US11274176B2

公开(公告)日：2022-03-15

申请号：US16490844

申请日：2018-03-02

Applicant: NATIONAL INSTITUTE OF TECHNOLOGY ,  NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY ,  KYOTO UNIVERSITY ,  NISSHINBO HOLDINGS INC.

Inventor： Takaya Sato ,  Hiroyuki Arafune ,  Takashi Morinaga ,  Saika Honma ,  Toshio Kamijo ,  Ken Nakano ,  Yoshinobu Tsujii

IPC: C08F291/06 ,  C08J3/12 ,  C08L33/10 ,  C08L53/00

Abstract: A composite including a plurality of block copolymer chains dispersed in a base polymer, the block copolymer chains including a polymer block (A) and a polymer block (B) having lower affinity for the base polymer than that of the polymer block (A), wherein each of the block copolymer chains has the polymer block (A) at two or more locations of the block copolymer chain, and in at least some of the block copolymer chains, the polymer blocks (A) are at least partially located in the base polymer and the polymer blocks (B) are at least partially exposed from the base polymer.

公开(公告)号：US10882962B2

公开(公告)日：2021-01-05

申请号：US16145604

申请日：2018-09-28

Applicant: KYOTO UNIVERSITY

Inventor： Yoshinobu Tsujii ,  Keita Sakakibara ,  Yoshihiko Shimizu ,  Hiroshi Watanabe ,  Takaya Sato ,  Ken Nakano ,  Hitoshi Hattori

IPC: C08J3/075 ,  C08J5/18 ,  C08F251/02 ,  C08G83/00 ,  C10M145/40 ,  C10M169/04 ,  C10M119/12 ,  C08F220/22 ,  C08B3/14 ,  C10M171/00 ,  C08L1/02 ,  C08B1/00 ,  C08L89/06 ,  C08L1/10 ,  C10N20/04 ,  C10N20/00 ,  C10N30/06 ,  C10N50/00

Abstract: Using an organic compound having a bottle brush structure, a material having softness and resilience and having excellent low-friction performance (SRT material) can be provided. Preferably, the SRT material contains a reinforcing filler, and may contain a lubricating liquid to be gelled.

公开(公告)号：US11912952B2

公开(公告)日：2024-02-27

申请号：US17783164

申请日：2020-12-01

Applicant: KYOTO UNIVERSITY ,  NATIONAL INSTITUTE OF TECHNOLOGY ,  National University Corporation YOKOHAMA National University

Inventor： Yoshinobu Tsujii ,  Keita Sakakibara ,  Takaya Sato ,  Hiroyuki Arafune ,  Ken Nakano ,  Mayu Miyazaki

IPC: C10M105/38 ,  A46B15/00 ,  A46D1/00 ,  C08F120/14

CPC classification number: C10M105/38 ,  A46B15/00 ,  A46D1/0207 ,  C08F120/14 ,  A46B2200/405 ,  C10M2207/2835

Abstract: A material comprising:



a support 10; and
a brush layer 20 containing a brush-like polymer chain assemblage 21 formed of a plurality of polymer chains and a swelling liquid 22, in which a brush layer 20 is swollen with the swelling liquid 22,
the brush layer 20 retaining on the surface a lubricating liquid 30,
and
the swelling liquid 22 contained in the brush layer 20 and the lubricating liquid 30 being phase-separated to form a liquid-liquid phase separation interface 40 in between
and
a sliding system using the material.

公开(公告)号：US11178493B2

公开(公告)日：2021-11-16

申请号：US16831245

申请日：2020-03-26

Applicant: PANASONIC CORPORATION ,  KYOTO UNIVERSITY ,  National University Corporation YOKOHAMA National University

Inventor： Hidetoshi Hiraoka ,  Yoshinobu Tsujii ,  Keita Sakakibara ,  Ken Nakano

IPC: H04R9/04 ,  H04R7/12 ,  H04R7/18 ,  H04R9/02 ,  H04R9/06

Abstract: An electroacoustic transducer includes: a diaphragm; a magnetic circuit having a magnetic gap; a frame that holds the diaphragm and the magnetic circuit; a voice coil having one end portion positioned within the magnetic gap and the other end portion coupled to the diaphragm; and a low friction material that is disposed in a sliding portion formed by the voice coil and the magnetic circuit, and includes polymer compounds swollen with liquid.