Ricoh Company, Ltd.

Meijo University

Ricoh Companmy, Limited

Hiroyuki Suhara

Takashi Fujita

Seizo Suzuki

Magane Aoki

Yoshinori Hayashi

Hiroaki Tanaka

Hiroto Tachibana

Takao Yamaguchi

Takeshi Ueda

Kenichi Takanashi

Tatsuya Ito

Satoru Itoh

Koji Hirakura

Taira Kouchiwa

Kohji Sakai

Masato Iio

Kazumi Suzuki

Akihisa Itabashi

Yuichi Ueno

Atsushi Takeuchi

Nobuaki Kubo

Katsuyuki Uematsu

Hiromichi Atsuumi

Mitsuo Suzuki

Koji Masuda

Akira Kojima

Taku Amada

Jun Aoto

Shohta Kobashigawa

Tomoya Ohsugi

Asato Tamura

Ichiro Maeda

Takuei Nishio

Hidekazu Murata

Hiroshi Shimoyama

Provided is light irradiation method for irradiating a light absorbing material with light beam having wavelength absorbable by light absorbing material, including applying to light absorbing material, energy that enables light absorbing material to fly, by pressure in a vaporized region higher than or equal to outside pressure, wherein vaporized region is present at interface between a transparent body and light absorbing material in a manner to surround an optical axis. Also provided is flying body generating method including irradiating a surface of a base material opposite to a surface over which light absorbing material is disposed with laser beam to fly light absorbing material in an emitting direction of laser beam, wherein vaporized region having pressure higher than or equal to outside pressure is generated along outer circumference of a region irradiated with laser beam at interface between base material and light absorbing material.

Light irradiation method, light absorbing material attaching apparatus, flying body generating method and apparatus, image forming method, and three-dimensional object producing method

An apparatus configured to fly a light-absorbing material, includes a unit configured to irradiate a light-absorbing material absorbing light with a laser beam corresponding to a light absorption wavelength of the light-absorbing material to fly the light-absorbing material. When a preceding beam radiation region and a following beam radiation region overlap, the following beam radiation region is irradiated with the laser beam such that a beam centroid position is outside the preceding beam radiation region.

Apparatus configured to fly light-absorbing material, apparatus configured to model three-dimensional modeled object, and method of flying light-absorbing material

Provided is mass spectrometry including applying a laser beam to a matrix dot disposed on a surface of a measurement sample. One of: a laser spot appearing in the measurement sample when the laser beam is applied to the matrix dot; and the matrix dot, is completely enclosed in the other.

Mass spectrometry

A method for preparing a measurement sample for MALDI mass spectrometry, the method including applying a laser beam to a base including a matrix used for preparing the measurement sample for MALDI mass spectrometry, the matrix being disposed on a surface of the base, in a manner that the laser beam is applied to a surface of the base opposite to the surface including the matrix, to make the matrix fly from the base to be disposed at a predetermined position of an analyte of MALDI mass spectrometry, wherein the base includes a laser energy absorbable material, and wherein laser energy of the laser beam has a wavelength of 400 nm or longer.

Method, device, and base for preparing measurement sample for MALDI mass spectrometry

A light illumination device, a light processing apparatus using the light illumination device, a light illumination method, and a light processing method. The light illumination device, the light illumination method, and the light processing method include converting a phase distribution of a transmitted wavefront of light emitted from a light source, changing a ratio between a first diameter of a cross section perpendicular to an optical axis of the light whose phase distribution of the transmitted wavefront is converted in the converting along a first axis and a second diameter along a second axis perpendicular to the first axis and the optical axis of the light, and condensing the light whose ratio between the first diameter and the second diameter is changed in the changing.

Light illumination device, light processing apparatus using light illumination device, light illumination method, and light processing method

An optical processing apparatus includes a light source, a condensing optical system, and a shaping optical system. The light source emits light. The condensing optical system condenses the light emitted from the light source onto a processing target position on a surface of an object to be processed. The shaping optical system shapes a spot shape of the condensed light, such that a ratio of a major axis diameter of the spot shape to a minor axis diameter of the spot shape, in a cross section orthogonal to an optical axis of the condensed light on the object to be processed, is a minimum at or adjacent to a focal position of the shaping optical system. A method for optically processing an object is also provided.

Optical processing apparatus, method for optical processed object

An image forming method is for forming an image using an electrostatic latent image that is formed by exposing a surface of an image bearer in accordance with an image pattern that includes a plurality of image areas in combination. Each of the plurality of image areas includes a plurality of pixels. A part of pixels to be exposed in each of the plurality of image areas is set as a non-exposure pixel group in accordance with a position of any one of the plurality of image areas in the image pattern. Pixels that are different from the non-exposure pixel group in each of the plurality of image areas are set as a high-output exposure pixel group that is exposed with an optical output value that is higher than a predetermined optical output value that is needed to expose the image area.

Image forming method and image forming apparatus for forming an image by setting various pixels of an exposure pattern as a non-exposure pixel group or a high-output exposure pixel group

An image forming apparatus forms an image by exposing an image bearer on the basis of image data including at least one predetermined pattern. The image forming apparatus includes a processing device that sets an exposure amount of a plurality of exposure pixels. The predetermined pattern is constituted by the plurality of exposure pixels, and a peripheral region of the predetermined pattern in the image data is constituted by a plurality of non-exposure pixels. The processing device sets an exposure amount of an exposure pixel in a specific region that is adjacent to a boundary between the predetermined pattern and the peripheral region and is constituted by at least one exposure pixel in the predetermined pattern, and an exposure amount of an exposure pixel in a region other than the specific region in the predetermined pattern to values different from each other.

Image forming apparatus and image forming method to form an image based on image data including a pattern

An image forming method exposes a surface of an image bearer with light according to an image pattern including an image portion to form an electrostatic latent image, and includes: setting, among pixels constituting the image portion, at least a group of pixels existing at a boundary with respect to a non-image portion as a non-exposure pixel group, and at least a group of pixels existing at a boundary with respect to the non-exposure pixel group as a high power exposure pixel group; specifying, among the pixels constituting the image portion, a predetermined pixel as a target pixel, and a group of pixels existing at a boundary with respect to the non-image portion close to the target pixel as a boundary pixel group; and specifying a light power value of the target pixel based on image identification information acquired from the pixels constituting the image portion.

Image forming method and image forming apparatus including a high power exposure pixel group

An image forming method forms an electrostatic latent image corresponding to an image pattern including an image portion and a non-image portion by exposing a surface of an image bearer with light according to the image pattern. The image portion includes a plurality of pixels. Among the pixels constituting the image portion, at least a group of pixels existing at a boundary with respect to the non-image portion is set as a non-exposure pixel group. Among the pixels constituting the image portion, at least a group of pixels existing at a boundary with respect to the non-exposure pixel group is set as a high power exposure pixel group where exposure is performed with light of a higher light power value than a predetermined light power value required for exposing the image portion.

Image forming method, image forming apparatus, and print material production method to form an electrostatic latent image by selective light power exposure

An image forming method includes exposing a surface of an image bearer with light according to an image pattern including an image portion and a non-image portion, the image portion constituted of a plurality of pixels, to form an electrostatic latent image correspondent to the image pattern, comparing the image pattern adjacent to each of the pixels with a comparison pattern constituted of a plurality of pixels to specify at least a group of pixels existing at a boundary with respect to the non-image portion as a group of non-exposure pixels among the pixels constituting the image portion, and executing determination of specifying at least a group of pixels adjacent to the group of non-exposure pixels as a group of high power exposure pixels exposed with light of a higher light power than a predetermined light power required for exposing the image portion among the pixels constituting the image portion.

Image forming method, image forming apparatus, and printed matter production method

In an image forming method for forming an electrostatic latent image corresponding to an image pattern including an image portion and a non-image portion by exposing a surface of an image bearer with light based on the image pattern, the image portion has a plurality of pixels, the pixels constituting the image portion but not adjacent to at least a non-image portion are exposed with a first optical output that is higher than a given optical output obtained when the entire pixels corresponding to the image portion are exposed over a given time period.

Image forming method and image forming apparatus for forming an electrostatic latent image corresponding to an image pattern including an image portion and a non-image portion

An electrostatic latent image forming method for forming, on an image carrier, an electrostatic latent image that has a pattern where there are an irradiated area and a not-irradiated area in a mixed manner, the electrostatic latent image forming method comprises; adjusting an exposure condition of an irradiated area that is included in the irradiated area and is adjacent to the not-irradiated area so that an electric field intensity of an electrostatic latent image that corresponds to the not-irradiated area is increased so as to prevent adhesion of a developer, and irradiating the image carrier with light under the adjusted exposure condition.

Electrostatic latent image forming method, electrostatic latent image forming apparatus, and image forming apparatus

An image forming method includes: exposing a surface of an image carrier with a light based on an image pattern including an image portion and a non-image portion to form an electrostatic latent image corresponding to the image pattern. The image portion is made up of a plurality of pixels. Some of the pixels that make up the image portion are exposed with light of a first output value that is higher than a prescribed optical output value when the entire pixels corresponding to the image portion are exposed over a prescribed time period.

Growing community of inventors

Kanagawa, Japan

Hiroyuki Suhara