公开(公告)号：US20120304649A1

公开(公告)日：2012-12-06

申请号：US13485383

申请日：2012-05-31

Applicant: Ryusuke MATSUYAMA ,  Masayoshi KOBAYASHI ,  Takeo ODA ,  Atsushi HORIKAWA ,  Shigeru HAYASHI ,  Kazuo SHIMODAIRA ,  Kazuaki MATSUURA ,  Hideshi YAMADA ,  Youji KUROSAWA ,  Hitoshi FUJIWARA

Inventor： Ryusuke MATSUYAMA ,  Masayoshi KOBAYASHI ,  Takeo ODA ,  Atsushi HORIKAWA ,  Shigeru HAYASHI ,  Kazuo SHIMODAIRA ,  Kazuaki MATSUURA ,  Hideshi YAMADA ,  Youji KUROSAWA ,  Hitoshi FUJIWARA

IPC: F02C7/22

CPC classification number: F23R3/14 ,  F23R3/286 ,  Y02T50/675

Abstract: A fuel injector includes: a pilot injector configured to spray fuel so as to form a first combustion region in a combustion chamber; and a main injector provided coaxially with the pilot injector so as to surround the pilot injector and configured to supply a fuel-air mixture that is a mixture of the fuel and air to form a second combustion region in the combustion chamber, wherein the main injector includes: a first inflow channel through which the air having a major flow component in an axial direction is taken; a second inflow channel through which the air having a major flow component in a radial direction is taken and which causes the air therein to meet the air from the first inflow channel; and a main fuel injecting portion configured to inject the fuel only to the second inflow channel.

Abstract translation: 燃料喷射器包括：引燃喷射器，构造成喷射燃料以在燃烧室中形成第一燃烧区域; 以及主喷射器，其与所述先导喷射器同轴地设置成围绕所述引燃喷射器并且构造成供应作为所述燃料和空气的混合物的燃料 - 空气混合物以在所述燃烧室中形成第二燃烧区域，其中所述主喷射器 包括：沿轴向方向具有主要流动分量的空气通过该第一流入通道; 第二流入通道，​​其中沿着径向方向具有主要流动分量的空气通过该第二流入通道引起其中的空气与来自第一流入通道的空气相遇; 以及主燃料喷射部，其构造成仅将燃料喷射到第二流入流路。

公开(公告)号：US20230205119A1

公开(公告)日：2023-06-29

申请号：US17967908

申请日：2022-10-18

Applicant: Hitoshi FUJIWARA

Inventor： Hitoshi FUJIWARA

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A fixing device includes a first rotator, a second rotator, a heater, and a discharger. The first rotator includes a conductive first layer, a non-conductive second layer, and a conductive third layer. The first to third layers exist in an order of the first layer to the third layer from a center of the first rotator to an outside of the first rotator. The second rotator forms a nip between the first rotator and the second rotator. A recording medium bearing a toner image passes through the nip. The heater is disposed inside a loop of the second rotator and heats the second rotator. The discharger is in contact with the first layer and the third layer and removes electric charge from the first rotator.

公开(公告)号：US20230004110A1

公开(公告)日：2023-01-05

申请号：US17840013

申请日：2022-06-14

Applicant: Hitoshi FUJIWARA

Inventor： Hitoshi FUJIWARA

IPC: G03G15/20

Abstract: A heating device includes a heater, a rotator, and a pressure rotator. The heater includes resistive heat generators forming a heat generation area and has a separation area formed by the resistive heat generators. The pressure rotator includes a first region and a second region. The first region faces the heater in a range of 20 mm from a center position of the heat generation area toward an end thereof in the arrangement direction. The second region faces the heater in at least a part of a range of 30 mm from a center position of the separation area toward the center position of the heat generation area. An outer diameter of the pressure rotator increases from the center toward the end. The outer diameter of the second region increases at an increasing rate larger than an increasing rate of the outer diameter of the first region.

公开(公告)号：US20220397847A1

公开(公告)日：2022-12-15

申请号：US17825421

申请日：2022-05-26

Applicant: Hitoshi FUJIWARA

Inventor： Hitoshi FUJIWARA

IPC: G03G15/20

Abstract: A heating device includes a heater, a safety device, and a holder. The safety device has a heat-sensitive surface facing the heater. The safety device cuts off power supply to the heater in response to reaching a temperature of the heat-sensitive surface to be equal to or higher than a predetermined temperature. The holder holds the heater. The holder has a through hole that opens toward the heater and includes a step portion disposed on an inner circumferential surface of the through hole. The step portion supports an end of the heat-sensitive surface such that a central portion of the heat-sensitive surface of the safety device is not in contact with the heater.

公开(公告)号：US20220276593A1

公开(公告)日：2022-09-01

申请号：US17529306

申请日：2021-11-18

Applicant: Hitoshi FUJIWARA

Inventor： Hitoshi FUJIWARA

IPC: G03G15/20 ,  G03G15/00

Abstract: A fixing device includes a fixing rotator, a heater, a pressure rotator, a stay, a biasing member fixed to the stay, and a nip formation pad. The nip formation pad is supported by the stay, disposed inside the fixing rotator, and forms a nip. The nip formation pad includes at least one engaged portion at a position other than both ends of the nip formation pad or engaged portions at both ends of the nip formation pad. The at least one engaged portion engages an engaging portion in the stay to generate a first rotational moment. The engaged portions at both ends engage engaging portions in the stay to generate a second rotational moment. Each rotational moment is smaller than a rotational moment generated by engagement between an engaging portion in the stay and an engaged portion at only one end of the nip formation pad.

公开(公告)号：US20220075302A1

公开(公告)日：2022-03-10

申请号：US17413586

申请日：2020-02-19

Applicant: Naoki IWAYA ,  Hitoshi FUJIWARA

Inventor： Naoki IWAYA ,  Hitoshi FUJIWARA

IPC: G03G15/20

Abstract: A nip formation member includes a base, a high thermal conduction member, and a securing member. The high thermal conduction member has a thermal conductivity greater than a thermal conductivity of the base. The securing member is independent from the base and the high thermal conduction member. The securing member is configured to restrict movement of the base relative to the high thermal conduction member.

公开(公告)号：US20210011400A1

公开(公告)日：2021-01-14

申请号：US16897343

申请日：2020-06-10

Applicant: Takuya SESHITA ,  Hiroshi KAJIYAMA ,  Hitoshi FUJIWARA

Inventor： Takuya SESHITA ,  Hiroshi KAJIYAMA ,  Hitoshi FUJIWARA

IPC: G03G15/20

Abstract: A fixing device includes a fixing rotator, a pressure rotator configured to press the fixing rotator, a fixing structure, a temperature detector, a discharger, and a holder. The fixing structure is configured to hold at least one of the fixing rotator and the pressure rotator. The temperature detector is configured to contact a detected member that is at least one of the fixing rotator and the pressure rotator and detect a temperature of the detected member. The discharger is configured to contact and discharge the detected member. The holder is fixed on the fixing structure and configured to hold the temperature detector and the discharger.

公开(公告)号：US20210003947A1

公开(公告)日：2021-01-07

申请号：US16869737

申请日：2020-05-08

Applicant: Hitoshi FUJIWARA ,  Hiroshi Kajiyama

Inventor： Hitoshi FUJIWARA ,  Hiroshi Kajiyama

IPC: G03G15/20

Abstract: A presser presses a rotator and switches between a pressurization state in which the presser presses the rotator and a depressurization state in which the presser releases the pressurization state. The presser includes a pressure portion that presses the rotator in the pressurization state. The presser further includes a retracted portion that retracts from the pressure portion in a retracting direction in which the retracted portion retracts from the rotator. The retracted portion presses the rotator in the depressurization state.

公开(公告)号：US20130064586A1

公开(公告)日：2013-03-14

申请号：US13597957

申请日：2012-08-29

Applicant: Tomoya ADACHI ,  Shigeo NANNO ,  Tomohiko FUJII ,  Yutaka NAITOH ,  Minoru TOYODA ,  Hitoshi FUJIWARA

Inventor： Tomoya ADACHI ,  Shigeo NANNO ,  Tomohiko FUJII ,  Yutaka NAITOH ,  Minoru TOYODA ,  Hitoshi FUJIWARA

IPC: G03G15/20

CPC classification number: G03G15/2007 ,  G03G15/2017 ,  G03G2215/0132 ,  G03G2215/2003 ,  G03G2215/2035

Abstract: A fixing device includes an endless belt and an opposed rotary body contacting an outer circumferential surface of the belt. A nip formation pad contacting a first part of an inner circumferential surface of the belt presses against the opposed rotary body via the belt to form a fixing nip between the belt and the opposed rotary body through which a recording medium bearing a toner image is conveyed. A heat conductor disposed opposite a second part of the inner circumferential surface of the belt not contacted by the nip formation pad is interposed between a heater and the belt to conduct heat from the heater to the belt. A reflector disposed inside the loop formed by the belt reflects light from the heater toward the heat conductor. The reflector and the heat conductor surround the heater.

Abstract translation: 固定装置包括环形带和与带的外周表面接触的相对转动体。 与带的内周面的第一部分接触的辊隙形成垫通过带压靠在相对的旋转体上，以在带和相对的旋转体之间形成定影辊隙，通过该定位夹持物传送带有调色剂图像的记录介质。 设置在不与辊隙形成垫接触的带的内周面的第二部分相对的导热体处于加热器和带之间，以将热量从加热器传导到带。 设置在由带形成的环内的反射器将来自加热器的光反射向导热体。 反射器和热导体围绕加热器。