Anritsu Corporation

Asahi Kasei Kabushiki Kaisha

Ricoh Company, Ltd.

Asahi Kasei Fibers Corporation

Postech Academy-industry Foundation

Asahi Kasei Chemicals Corporation

Hirofumi Ono

Koji Yamashita

Shinichi Ito

Kazufumi Kawahara

Yamato Saito

Satoru Yoshida

Kenji Goto

Yutaka Ohmiya

Mayfor Dangkiw

Atsushi Horii

Yoko Fujimoto

Shuji Takasu

Ryo Inomata

Sangwoo Kim

Daisuke Sato

Hideki Hashimoto

Ayumu Hashimoto

Naoaki Yamasaki

Shinji Sakaguchi

Mikihiko Nakamura

Toshihiko Matsui

Hideki Amakawa

Masayuki Nakatani

Hirofumi Uchimura

Hirotaka Asai

Ikuya Miyamoto

Takenori Kakutani

Yasuyo Yamaoka

Ikuo Nishida

Youngsook Lee

Takao Miwa

Hiroko Kawaji

An analog signal generation device according to the present invention includes a DA converter that adjusts a signal level of a digital signal according to a DAC correction amount and then converts the digital signal into an analog signal, a detector that detects the analog signal and outputs a detection signal, a storage unit that stores a characteristic equation for calculating the DAC correction amount, and a control unit, in which in a case where the differential voltage when the digital signal having a signal level of a predetermined value is input to the DA converter is larger than a threshold value, the control unit calculates a new DAC correction amount based on the differential voltage by using the characteristic equation, and in a case where the differential voltage does not fall within the threshold value, the control unit corrects the characteristic equation.

Analog signal generation device and calibration method of same

An embodiment of the present disclosure provides fine cellulose fibers that satisfy, in measurement using an automatic fiber shape analyzer, all of (i) the length weighted average fiber length of fibers having a fiber length of at least 100 μm is 110-500 μm, (ii) the average fiber diameter is at most 42.5 μm, (iii) the fine fiber area ratio is at most 90%, (iv) the number frequency of fibers having a fiber length of 20-56 μm is at most 97% among fibers having a fiber length of less than 100 μm, (v) the number frequency of fibers having a fiber length of at least 411 μm is at most 54% among fibers having a fiber length of at least 100 μm, and (vi) the average fiber diameter is 20-150 nm in terms of specific surface area.

Fine cellulose fibers and production method therefor, nonwoven fabric, and fiber-reinforced resin and production method therefor

An image reading apparatus includes a first light source, a second light source, a visible imaging sensor, an invisible imaging sensor, and a reduction unit. The first light source irradiates an object with visible light. The second light source irradiates the object with invisible light. The visible imaging sensor reads a visible image of the object. The invisible imaging sensor reads an invisible image of the object. The reduction unit reduces a visible wavelength component of light received by the invisible imaging sensor.

Image reading apparatus, image reading method, and non-transitory recording medium

A signal generation unit, a DA converter, variable attenuators, and, a measurement unitthat detects a level of the signal attenuated by the variable attenuators, andand passed through one or more semiconductor components, a switchthat switches between an Internal path through which the signal attenuated by the variable attenuator, andis transmitted to the measurement unitand an External path through which the signal attenuated by the variable attenuator, andis output from an output terminal, and a control unitthat obtains a correction value of an attenuation amount of the variable attenuators, andwith the Internal path and obtains a correction value of an attenuation amount of the variable attenuatorwith the External path.

Signal generation apparatus, level correction value calculation system, and level correction value calculation method

A signal generation unit, a DA converter, variable attenuators, andthat attenuate an analog signal converted by the DA converter, a measurement unitthat detects a level of the signal attenuated by the variable attenuators, andand passed through one or more semiconductor components, and a control unitthat obtains a value of a step error, which is a correction value of an attenuation amount of the variable attenuators, andin each of a plurality of steps obtained by dividing a maximum value of the attenuation amount of the variable attenuators, andby a variation amount, which is a predetermined attenuation amount are included.

A signal generation unit, a DA converter, variable attenuators, andthat attenuate the analog signal converted by the DA converter, a measurement unitthat detects a level of the signal attenuated by the variable attenuators, andand passed through one or more semiconductor components, and a control unitthat obtains a value of a step error, which is a correction value of an attenuation amount of the variable attenuators, andin each of a plurality of steps obtained by dividing a maximum value of the attenuation amount of the variable attenuators, andby a variation amount, which is a predetermined attenuation amount are included.

A position sensing apparatus and a method of detecting a position. The position sensing apparatus includes a scanner configured to emit light to an object to scan an image of the object, and a position detector. In the position sensing apparatus, the scanner outputs a first result of scanning obtained by irradiating the object with visible light and a second result of scanning obtained by irradiating the object with invisible light to the position detector, and the position detector corrects the second result of scanning based on the first result of scanning, and to detect an invisible alignment image based on the corrected second result of scanning. The method includes emitting light to an object using a scanner, obtaining a first result of scanning as the scanner irradiates the object with visible light, and obtaining a second result of scanning as the scanner irradiates the object with invisible light.

Position sensing apparatus, image forming apparatus, and position detection method

An information processing apparatus is configured to perform information processing on a target. The information processing apparatus includes one or more processors; and one or more memories storing program instructions that cause the one or more processors to perform a plurality of processes, the plurality of processes including a first process of adding information to the target and a second process of obtaining the information; control each of the plurality of processes; and perform a correcting process of concurrently performing corrections with respect to the plurality of processes.

Information processing apparatus, image forming apparatus, information processing method, and image forming method

According to the present disclosure, there is provided a signal generation apparatus including: a base band module (); a DA converter that converts digital base band signals into modulation signals corresponding to a plurality of cells; an RF converter () to which the modulation signals corresponding to the plurality of cells are input, and which outputs an RF signal obtained by frequency-converting the modulation signal; and an RF converter control unit (), in which the RF converter control unit controls the base band module to reduce a power value of a digital base band signal corresponding to a predetermined cell, among the digital base band signals corresponding to the plurality of cells in the base band module so that an input level of the modulation signal input to the RF converter is equal to or lower than an input limit value of the RF converter.

Signal generation apparatus and signal generation method

An object of the present disclosure is to prevent an output level of an analog signal from exceeding a predetermined upper limit value, in a module that adjusts a level of the analog signal. According to the present disclosure, there is provided a signal generation apparatus including an RF base module () that converts a digital base band signal for testing into an intermediate frequency (IF) signal and outputs the IF signal, and a control unit (), in which the RF base module is connected to an RF converter () which outputs an analog RF signal obtained by frequency-converting the IF signal, and the control unit clips the IF signal output from the RF base module based on an output level of the analog RF signal output from the RF converter.

A resin composite film comprising a cellulose microfiber sheet and a resin, the resin composite film satisfying the following: (1) in a modulus mapping obtained by an examination of a cross-section with an AFM along the thickness direction, the fibers constituting the cellulose microfiber sheet have an average fiber diameter and a maximum fiber diameter, both calculated through image analysis, of 0.01-2.0 &#x3bc;m and 15 &#x3bc;m or smaller, respectively; and (2) at least one surface of the resin composite film has an overcoat resin layer having an average thickness, determined from the modulus mapping, of 0.3-100 &#x3bc;m.

Resin composite film including cellulose microfiber layer

The present invention provides a fine cellulose fiber sheet, of which various properties and functions such as paper making ability, solvent resistance, adhesion, functionalization agent immobilization, surface zeta potential, hydrophilicity, hydrophobicity, and air permeation resistance are finely controlled, through a process having low environmental impact. A fine cellulose fiber sheet according to the present invention fulfills all of the following requirements (1) to (3): (1) comprises fine cellulose fibers having an average fiber diameter of 2 nm or greater and 1000 nm or less; (2) the weight ratio of the fine cellulose fibers is 50 wt % or greater and 99 wt % or less; and (3) the block polyisocyanate aggregate content as a weight ratio is 1 to 100 wt % of the weight of the fine cellulose fibers.

Fine cellulose fiber sheet

Provided are: a resin-containing sheet in which not only the mechanical strength of a cellulose nanofiber nonwoven fabric but also the flexural resistance of a substrate are improved; and a structure and a wiring board which include the same. The resin-containing sheet includes: a specific cellulose nanofiber nonwoven fabric (); a fixing agent () which fixes together fibers () in the cellulose nanofiber nonwoven fabric (); and a resin () which is in contact with the cellulose nanofiber nonwoven fabric () and the fixing agent (), wherein the storage modulus of the fixing agent () is higher than that of the resin (). The structure is obtained by tightly adhering the resin-containing sheet to a substrate. The wiring board includes this structure.

Resin-containing sheet, and structure and wiring board using same

Provided is a multilayered structure comprising at least one fine cellulose fiber nonwoven fabric layer made of a fine cellulose fiber, wherein the multilayered structure is characterized in that the mean fiber diameter of the fine cellulose fiber forming the fine cellulose fiber non-woven fabric layer is 0.005 to 0.5 &#x3bc;m, and the mean thickness of the multilayered structure is 10 to 200 &#x3bc;m, the density thereof is 0.10 to 0.90 g/cm, and the permeability resistance thereof is 2000 s/100 ml or more. Also provided are an energy recovery ventilation sheet made of this multilayered structure, an energy recovery ventilation element using this energy recovery ventilation sheet as a partitioning material for partitioning two types of air flow of different temperature and/or humidity, and a energy recovery ventilator using this energy recovery ventilation element.

Growing community of inventors

Tokyo, Japan

Hirofumi Ono