公开(公告)号：US20240109807A1

公开(公告)日：2024-04-04

申请号：US18537768

申请日：2023-12-12

Applicant: HOYA CORPORATION

Inventor： Shuhei AZUMA

IPC: C03C23/00 ,  B23K26/352 ,  B23K26/354 ,  C03B29/02 ,  G11B5/73 ,  G11B5/84

CPC classification number: C03C23/0025 ,  B23K26/354 ,  B23K26/3576 ,  C03B29/025 ,  G11B5/73921 ,  G11B5/8404 ,  B23K2103/54

Abstract: An annular glass plate has an outer circumferential edge surface, an inner circumferential edge surface, and a thickness not larger than 0.6 mm. The outer circumferential edge surface and the inner circumferential edge surface are constituted by molten surfaces. The molten surfaces in the outer circumferential edge surface and the inner circumferential edge surface each have an arithmetic average surface roughness Ra not larger than 0.1 μm and the surface roughness of the molten surface in the inner circumferential edge surface is larger than the surface roughness of the molten surface in the outer circumferential edge surface. The molten surfaces in the inner circumferential edge surface and the outer circumferential edge surface do not bulge relative to both main surfaces of the annular glass plate.

公开(公告)号：US20240069301A1

公开(公告)日：2024-02-29

申请号：US18235049

申请日：2023-08-17

Applicant: HOYA CORPORATION

Inventor： Kenji YAMANAKA

IPC: G02B7/02

CPC classification number: G02B7/02

Abstract: A lens includes: an optical-functioning portion that is a glass press-molded product and has both lens surfaces in an optical axis direction and a volume absorption portion allowing a shape error due to press-molding around the lens surfaces; and a flange portion made of a material different from the glass of the optical-functioning portion, fixed to the optical-functioning portion to surround the volume absorption portion, and having a position reference surface serving as a reference of a lens position. An outer diameter D in an orthogonal direction to the optical axis defined by the flange portion and a thickness t of the flange portion satisfy the following condition (1) or (2).


when 2 mm≤D≤5 mm, 0.15≤t≤0.35  (1)



when D>5 mm, 0.15+(D−5)×0.03≤t≤0.15+(D−5)×0.07  (2)

公开(公告)号：US11914281B2

公开(公告)日：2024-02-27

申请号：US17311662

申请日：2019-12-23

Applicant: HOYA CORPORATION

Inventor： Yohei Ikebe

IPC: G03F1/24 ,  G03F1/26

CPC classification number: G03F1/24 ,  G03F1/26

Abstract: A reflective mask blank comprises a substrate; a multilayer reflective film which is formed on the substrate and reflects EUV light; and a layered film which is formed on the multilayer reflective film. The layered film has an absolute reflectance of 2.5% or less with respect to EUV light, and comprises a first layer and a second layer formed on the first layer; and the first layer comprises a phase shift film which shifts the phase of EUV light. Alternatively, the layered film is a phase shift film which comprises a first layer and a second layer formed on the first layer, and which shifts the phase of EUV light; and the first layer comprises an absorption layer that has an absolute reflectance of 2.5% or less with respect to EUV light.

公开(公告)号：US20240062779A1

公开(公告)日：2024-02-22

申请号：US18259773

申请日：2021-12-28

Applicant: HOYA CORPORATION ,  HOYA GLASS DISK VIETNAM II LTD.

Inventor： Shinji EDA ,  Kenichi NISHIMORI

IPC: G11B5/84 ,  G11B5/82 ,  G11B5/73

CPC classification number: G11B5/84 ,  G11B5/82 ,  G11B5/73

Abstract: A magnetic disk used in a hard disk drive device includes a substrate; a magnetic recording layer; and a heat insulating layer provided between the substrate and the magnetic recording layer. Even though a substrate has low heat resistance, as a result of providing the heat insulating layer, the substrate can be used as a substrate for a magnetic disk that can withstand heat treatment (high-temperature annealing).

公开(公告)号：US11903566B2

公开(公告)日：2024-02-20

申请号：US17259735

申请日：2020-03-12

Applicant: HOYA CORPORATION

Inventor： Atsushi Komoro

IPC: A61B1/05 ,  A61B1/00 ,  H04N23/54 ,  H04N23/50

CPC classification number: A61B1/051 ,  A61B1/00124 ,  H04N23/54 ,  H04N23/555

Abstract: An imaging module includes: an image sensor; and a mounting board on which the image sensor is mounted together with a plurality of passive components. The mounting board includes: a first surface on which the image sensor is surface-mounted; a second surface that is located on an opposite side to the first surface and on which the passive component is mounted; a third surface that is continuous with the second surface via a step and on which the passive component is mounted; and a columnar cable connection block that rises from the second and third surfaces and to which a cable is connected.

公开(公告)号：US11884582B2

公开(公告)日：2024-01-30

申请号：US17631440

申请日：2020-07-31

Applicant: HOYA CORPORATION

Inventor： Shuhei Azuma

IPC: C03C23/00 ,  C03B29/02 ,  B23K26/354 ,  B23K26/352 ,  G11B5/73 ,  G11B5/84 ,  B23K103/00 ,  C03B33/04 ,  C03B33/09

CPC classification number: C03C23/0025 ,  B23K26/354 ,  B23K26/3576 ,  C03B29/025 ,  G11B5/73921 ,  G11B5/8404 ,  B23K2103/54 ,  C03B33/04 ,  C03B33/091

Abstract: A method for manufacturing an annular glass plate that has an outer circumferential edge surface, an inner circumferential edge surface, and a thickness not larger than 0.6 mm includes processing for manufacturing an annular glass plate by irradiating each of the outer circumferential edge surface and the inner circumferential edge surface of an annular glass blank with a laser beam to melt the outer circumferential edge surface and the inner circumferential edge surface and form molten surfaces such that the molten surfaces in the outer circumferential edge surface and the inner circumferential edge surface each have an arithmetic average surface roughness Ra not larger than 0.1 μm, and the surface roughness of the molten surface in the inner circumferential edge surface becomes larger than the surface roughness of the molten surface in the outer circumferential edge surface.

公开(公告)号：US11880130B2

公开(公告)日：2024-01-23

申请号：US17946709

申请日：2022-09-16

Applicant: HOYA CORPORATION

Inventor： Yohei Ikebe ,  Tsutomu Shoki ,  Takahiro Onoue ,  Hirofumi Kozakai

IPC: G03F1/24 ,  G03F1/26

CPC classification number: G03F1/24 ,  G03F1/26

Abstract: Provided are a reflective mask blank, having a phase shift film having little dependence of phase difference and reflectance on film thickness, and a reflective mask. The reflective mask blank is characterized in that the phase shift film is composed of a material comprised of an alloy having two or more types of metal so that reflectance of the surface of the phase shift film is more than 3% to not more than 20% and so as to have a phase difference of 170 degrees to 190 degrees, and when a group of metal elements that satisfies the refractive index n and the extinction coefficient k of k>α*n+β is defined as Group A and a group of metal elements that satisfies the refractive index n and the extinction coefficient k of k

公开(公告)号：US20240018031A1

公开(公告)日：2024-01-18

申请号：US18254369

申请日：2021-11-25

Applicant: HOYA CORPORATION

Inventor： Shuhei AZUMA

IPC: C03B33/08 ,  C03C17/00 ,  B23K26/00 ,  B23K26/354 ,  B24B7/24 ,  G11B5/84

CPC classification number: C03B33/082 ,  C03C17/002 ,  B23K26/0006 ,  B23K26/354 ,  B24B7/241 ,  G11B5/84 ,  C03C2218/31

Abstract: In a method for manufacturing a glass plate that includes chamfering processing for chamfering an edge surface of a glass plate, the chamfering processing includes a step of forming a chamfered surface by irradiating the edge surface of the glass plate with a laser beam, and a step of heating the glass plate before the chamfered surface is formed. When a temperature of the glass blank at which the glass blank is heated is Tp [° C.], a glass transition point of the glass blank is Tg [° C.], and an average coefficient of linear thermal expansion of the glass blank is α [1/° C.], (Tg−Tp)≤−5.67×107·α+840 is satisfied.

公开(公告)号：US11869538B2

公开(公告)日：2024-01-09

申请号：US17909583

申请日：2021-03-08

Applicant: HOYA CORPORATION

Inventor： Masafumi Miura ,  Kazuaki Hashimoto ,  Naoyuki Higuchi

IPC: G11B17/02 ,  G11B23/03 ,  G11B5/73

CPC classification number: G11B17/021 ,  G11B5/73921 ,  G11B23/03

Abstract: A method for manufacturing a ring-shaped glass spacer to be arranged in contact with a magnetic disk in a hard disk drive device includes processing for forming a film on the surface of a glass spacer main body, which is the base of the glass spacer. In the processing, the film is formed by passing the glass spacer main body through a location where the components of the film are in a spray state while an outer circumferential edge surface of the glass spacer main body is being rotated in a circumferential direction thereof.

公开(公告)号：US11869183B2

公开(公告)日：2024-01-09

申请号：US17279893

申请日：2019-08-30

Applicant: HOYA CORPORATION

Inventor： Akihiko Nishide

IPC: G06T7/00 ,  G06T5/00 ,  H04N25/60

CPC classification number: G06T7/0012 ,  G06T5/002 ,  G06T5/006 ,  H04N25/60 ,  G06T2207/10068 ,  G06T2207/20081

Abstract: An endoscope processor according to one aspect includes an image acquisition unit that acquires a captured image from an endoscope, a first correction unit that corrects the captured image acquired by the image acquisition unit, a second correction unit that corrects the captured image acquired by the image acquisition unit, and an output unit that outputs an endoscopic image based on the captured image corrected by the first correction unit and a recognition result using a trained image recognition model in which the recognition result is output in a case where the captured image corrected by the second correction unit is input.