Fujifilm Corporation

Canon Kabushiki Kaisha

Ryo Nakamura

Hiroyuki Suzuki

Koichi Hashimoto

Shingo Horita

Ryo Inoue

Atsushi Matsuura

Tsuyoshi Hirokawa

Ryota Matsumoto

Yukwi Hong

Yukito Saitoh

Mitsuyoshi Ichihashi

Masaaki Suzuki

Yoji Ito

Shuji Hirano

Masaki Noro

Hiroshi Takeuchi

Michio Nagai

Shigeaki Nimura

Hiroshi Inada

Hiroaki Idei

Rikio Inoue

Katsuyuki Takada

Kenjiro Araki

Koji Sonokawa

Megumi Sekiguchi

Taketo Otani

Ryo Satake

Keigo Ueki

Kohei Aizu

Yuuya Miyagawa

Tomoki Ochimizu

Hiroaki Ide

Provided are a lithographic printing plate precursor having an image-recording layer on an aluminum support, in which the image-recording layer contains a polymerization initiator, an infrared absorber, a polymer particle, and a polymerizable compound, and the polymerizable compound has a) a molecular weight of 1,500 to 3,000, b) a double bond equivalent of 200 or less, and c) a CLog P of 9 or less and a method for producing a lithographic printing plate in which the lithographic printing plate precursor is used.

Lithographic printing plate precursor and method for producing lithographic printing plate

The present invention provides a lithographic printing plate precursor that enables a lithographic printing plate formed therefrom to have excellent image visibility and a long press life, as well as a lithographic printing plate manufacturing method and a printing method. The lithographic printing plate precursor of the invention is a lithographic printing plate precursor including an aluminum support and an image recording layer, the aluminum support includes an aluminum plate and an anodized film of aluminum formed on the aluminum plate, the anodized film is positioned closer to the image recording layer than the aluminum plate is, the anodized film has micropores extending in a depth direction of the anodized film from a surface of the anodized film on the image recording layer, the micropores have an average diameter of more than 10 nm but not more than 100 nm at the surface of the anodized film, and the surface of the anodized film on the image recording layer side has a lightness L* of 70 to 100 in a L*a*b* color system.

Lithographic printing plate precursor, lithographic printing plate manufacturing method and printing method

Provided are a planographic printing plate precursor including: a support; and an image recording layer provided on the support, in which the image recording layer contains an infrared absorbing agent, a polymerization initiator, a polymerizable compound containing a hydrogen bonding group, and a hard polymer particle containing at least one group selected from the group consisting of a urethane group, a urea group, an imide group, an amide group, and a sulfonamide group on the surface of the hard polymer particle, and a number average primary particle diameter of the hard polymer particle is in a range of 0.01 to 1 &#x3bc;m; and a plate-making method for a planographic printing plate obtained by using the planographic printing plate precursor.

Planographic printing plate precursor and plate-making method for planographic printing plate

A lithographic printing plate precursor, a lithographic printing plate manufacturing method, a printing method and an aluminum support manufacturing method enable the resulting lithographic printing plate to have a long tiny dot press life. The lithographic printing plate precursor includes an aluminum support and an image recording layer. When measured over a 400 &#x3bc;m&#xd7;400 &#x3bc;m region of a surface of the aluminum support on the image recording layer side using a three-dimensional non-contact roughness tester, pits with a depth from centerline of at least 0.70 &#x3bc;m are present at a density of at least 3,000 pits/mm. A surface area ratio &#x394;S is not less than 35%, where &#x394;S is determined using an actual area Sobtained, through three-point approximation, from three-dimensional data acquired by measurement at 512&#xd7;512 points in 25 &#x3bc;m square of the surface of the aluminum support on the image recording layer side.

Lithographic printing plate precursor, lithographic printing plate manufacturing method, printing method and aluminum support manufacturing method

A liquid crystal display device includes: a front-side polarizing plate having a front-side polarizer; a liquid crystal cell; and a rear-side polarizing plate having a rear-side polarizer in this order, in which a distance Dfrom a central portion of the front-side polarizer to a central portion of the liquid crystal cell and a distance Dfrom a central portion of the rear-side polarizer to the central portion of the liquid crystal cell are different from each other, in which a ratio between an X value, and the distance Dand a Y value, and the distance Drear-side polarizer is in a range of 1&#xb1;0.12, a distance Tbetween the front-side polarizing plate and the liquid crystal cell is 40 &#x3bc;m or more, and a distance Tbetween the rear-side polarizing plate and the liquid crystal cell is in a range of 0 to 30 &#x3bc;m.

Liquid crystal display device

There is provided a method of manufacturing a hard coat film having a hard coat layer on at least one side of a transparent support, the method includes curing a hard coat layer forming composition containing (a) a compound having one alicyclic epoxy group and one ethylenically unsaturated double bond group in a molecule and having a molecular weight of 300 or less, (b) a compound having three or more ethylenically unsaturated double bond groups in a molecule, (c) a radical polymerization initiator, and (d) a cationic polymerization initiator in a specific amount.

Method of manufacturing hard coat film, hard coat film, polarizing plate, and liquid crystal display device

Disclosed is a laminate film comprising an inner layer formed of a composition comprising a polymer material as a main component and an outer layer formed of a composition comprising a polymer material as a main component and laminated on at least one surface of the inner layer, wherein a film thickness of the outer layer differs depending upon a position in the width direction of the laminate film.

Laminate film, optically compensatory film, polarizing plate, and liquid crystal display device

Disclosed is a polymer film excellent in performance of inducing Rth. The polymer film comprises at least one species of a compound represented by the formula (I) and a compound represented by the formula (I'): 

Polymer film, phase difference film, polarizing plate, liquid crystal display device, retardation inducing agent, and merocyanine-based compound

An image forming apparatus includes an image bearing member; a charging device, including a rotatable magnetic particle carrying member and electroconductive magnetic particles carried on the rotatable magnetic particle carrying member, for charging the image bearing member by contacting the magnetic particles to the image bearing member; a measuring device for measuring magnitudes of a first force in a first direction and a second force in a second direction which are produced in a contact region between the image bearing member and the magnetic particles, wherein the first direction and second direction are independent from each other; and a control device for controlling an image forming operation on the basis of the forces measured by the measuring device.

Image forming apparatus

The invention relates to a polarizing plate comprising at least a polarizing layer having a K value as defined by the following expression of from 0.25 to 0.75;=()/()

Polarizing plate and liquid crystal display device using the same

An image forming apparatus includes an image bearing member and a charging device configured to charge the image bearing member. The charging device includes a magnetic particle carrier and a magnetic particle regulating member configured to regulate magnetic particles carried by the magnetic particle carrier. The charging device causes the magnetic particles carried by the magnetic particle carrier to contact the image bearing member, and applies a voltage to the magnetic particle carrier to charge the image bearing member. An electrode has a contact area via which the electrode can contact magnetic particles stored in a particle pool defined by the magnetic particle carrier and the magnetic particle regulating member. The contact area is variable according to an amount of the magnetic particles stored in the particle pool. A current detection device detects a value of current flowing from the magnetic particle carrier to the electrode via the magnetic particles.

Image forming apparatus having charging device using magnetic brush charger

A charging apparatus for charging a member to be charged by contacting magnetic particles to the member to be charged, includes a magnetic particle carrying member for magnetically carrying the magnetic particles, wherein the magnetic particle carrying member is provided at a longitudinal end portion of the magnetic particle carrying member with an insulative portion for electrically insulating from the magnetic particles carried by the magnetic particle carrying member; and an electroconductive member disposed for contacting the magnetic particles carried on the insulative portion, wherein an absolute value of a potential of the electroconductive member is lower than an absolute value of a voltage applied to the magnetic particle carrying member.

Charging apparatus and image forming apparatus

An image forming apparatus includes an image bearing member; a plurality of chargers for injection charging of the image bearing member; a latent image forming device, disposed downstream of the plurality of charging members with respect to a moving direction of a peripheral surface of the image bearing member, for forming a latent image on the image bearing member having been charged by the plurality of charging members; a potential detecting device for detecting a surface potential of the image bearing member after passing by the plurality of charging members, wherein the plurality of chargers include a first charger and a second charger disposed at a most downstream position with respect to the moving direction, and wherein the image forming apparatus is operable in a control mode in which a bias voltage applied to the first charger is changed with a bias voltage applied to the second charger unchanged.

Injection charging device promoting uniform charging of an image bearing member

An optical compensation film is provided and includes a first optically anisotropic layer and a second optically anisotropic layer. It is characterized in that the first optically anisotropic layer includes discotic liquid crystal and the second optically anisotropic layer has an Re(550) value of 15 to 150 nm and an Rth(550) value of &#x2212;40 to 10 nm, and a polarizing plate using such an optical compensation film.

Optical compensation film, polarizing plate and liquid crystal display

A charging device includes magnetic particles, a magnetic particle carrying member that magnetically carries the magnetic particles into contact with a member to be charged, and a magnetic particle adjusting unit for adjusting an amount per unit area of magnetic particles carried on the magnetic particle carrying member so that the amount per unit area of magnetic particles carried is larger in end regions of the magnetic particle carrying member in the longitudinal direction than in a central region of the magnetic particle carrying member in the longitudinal direction.

Growing community of inventors

Shizuoka, Japan

Ryo Nakamura