公开(公告)号：US06384964B1

公开(公告)日：2002-05-07

申请号：US09492007

申请日：2000-01-27

申请人： Kazuyo Mizuno ,  Shoichi Ozawa ,  Osamu Aso ,  Shu Namiki ,  Yuichiro Irie

发明人： Kazuyo Mizuno ,  Shoichi Ozawa ,  Osamu Aso ,  Shu Namiki ,  Yuichiro Irie

IPC分类号： H01S300

CPC分类号： H01S3/10023 ,  H01S3/06754 ,  H01S2301/04

摘要： The present invention effectively compensates gain wavelength dependency of optical amplifiers by a simple method. That is, a value smaller than the minimum value of gain, in the range of usage wavelengths, of gain wavelength dependency data of the optical amplifiers is predetermined as a reference gain value. A loss wavelength characteristic which counterbalances the gain greater than the reference gain value is provided as an ideal loss wavelength characteristic which completely compensates the gain wavelength dependency.

摘要翻译： 本发明通过简单的方法有效地补偿光放大器的增益波长依赖性。 也就是说，将光放大器的增益波长依赖性数据的使用波长范围内的增益的最小值小的值作为基准增益值进行预定。 将增益大于参考增益值的平衡的损耗波长特性提供为完全补偿增益波长相关性的理想损耗波长特性。

公开(公告)号：US06377390B1

公开(公告)日：2002-04-23

申请号：US09486562

申请日：2000-03-03

申请人： Kazuyo Mizuno ,  Shyoichi Ozawa ,  Osamu Aso ,  Shu Namiki ,  Ikuo Ohta ,  Yuichiro Irie

发明人： Kazuyo Mizuno ,  Shyoichi Ozawa ,  Osamu Aso ,  Shu Namiki ,  Ikuo Ohta ,  Yuichiro Irie

IPC分类号： H01S300

CPC分类号： H04B10/2941 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/10023 ,  H01S2301/04 ,  H04J14/0221

摘要： In an optical gain equalizer according to the present invention, a plurality of etalon filters 1 and one ore more fiber gratings 2 or dielectric multilayer filters 3 are arranged in line, and a beam of light externally applied is passed through the etalon filters 1 and the fiber gratings 2 or dielectric multilayer filters 3 and outputted to the outside, and the etalon filters 1 have sinusoidal wave loss characteristic of the same amplitude and period as those of the term obtained by Fourier series expansion of the loss wavelength characteristic for gain flattening, and the one or more fiber gratings 2 or dielectric multilayer filters 3 compensate the ripple component remaining as the difference between the loss wavelength characteristic for gain flattening and the loss wavelength characteristic owing to the etalon filters 1. An optical amplifying device 14 is constituted by combining an optical amplifier 5 with the optical gain equalizer 4. A wavelength-division multiplex transmitter is constituted by using the optical amplifying device 14.

摘要翻译： 在根据本发明的光学增益均衡器中，多个标准具滤光器1和一个以上的光纤光栅2或电介质多层滤光器3排列成一列，外部施加的光束通过标准具过滤器1和 光纤光栅2或电介质多层滤波器3并输出到外部，并且标准具滤波器1具有与通过用于增益平坦化的损耗波长特性的傅立叶级数扩展获得的项相同的振幅和周期的正弦波损耗特性， 一个或多个光纤光栅2或电介质多层滤波器3补偿作为增益平坦化的损耗波长特性与由标准具滤波器1引起的损耗波长特性之间的差异剩余的纹波分量。光放大装置14是将 具有光学增益均衡器的光放大器5 通过使用光放大装置14构成。

公开(公告)号：US06542666B2

公开(公告)日：2003-04-01

申请号：US09804577

申请日：2001-03-12

申请人： Toshiaki Tsuda ,  Shigehito Yodo ,  Kazuyo Mizuno ,  Yu Mimura ,  Toshihiko Ohta ,  Yoshihiro Emori ,  Shu Namiki

发明人： Toshiaki Tsuda ,  Shigehito Yodo ,  Kazuyo Mizuno ,  Yu Mimura ,  Toshihiko Ohta ,  Yoshihiro Emori ,  Shu Namiki

IPC分类号： G02B634

CPC分类号： H01S3/067 ,  H01S3/10023

摘要： Wavelength multiplex transmission is realized in which the temperature dependency of an EDFA is compensated for in relation to the wavelengths which are used. A first and a second long-period grating which have different periods from each other are formed in an optical fiber, ensuring that the peak wavelength of a waveform representing an optical transmission loss characteristic of the first long-period grating side is located on the shorter wavelength side than a transmission band and a peak wavelength of a waveform representing an optical transmission loss characteristic of the second long-period grating side is located on the longer wavelength side within the transmission band.

公开(公告)号：US5851717A

公开(公告)日：1998-12-22

申请号：US637081

申请日：1996-04-24

申请人： Kazuo Tsubuko ,  Akihiko Gotoh ,  Tsuyoshi Asami ,  Kazuyo Mizuno ,  Akihiro Koseki

发明人： Kazuo Tsubuko ,  Akihiko Gotoh ,  Tsuyoshi Asami ,  Kazuyo Mizuno ,  Akihiro Koseki

IPC分类号： G03G9/08 ,  G03G9/12 ,  G03G9/13 ,  G03G13/10

CPC分类号： G03G9/12 ,  G03G13/10 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/122 ,  G03G9/13

摘要： A developer for use in electrophotography for developing latent electrostatic images to visible toner images, includes at least two kinds of toner particles with different shapes selected from the group consisting of spherical toner particles, fibrous toner particles and amorphous toner particles, each toner particle containing a coloring agent and a binder resin. There is provided a liquid developer including a toner which is dispersed in a carrier liquid, in which the toner includes at least two kinds of the above-mentioned toner particles with different shapes. An electrophotographic image formation method using the above-mentioned liquid developer is also provided.

摘要翻译： 用于将静电潜像显影成可见调色剂图像的电子照相用显影剂包括选自球形调色剂颗粒，纤维调色剂颗粒和无定形调色剂颗粒的至少两种不同形状的调色剂颗粒，每个调色剂颗粒含有 着色剂和粘合剂树脂。 提供了包括分散在载体液体中的调色剂的液体显影剂，其中调色剂包括至少两种具有不同形状的上述调色剂颗粒。 还提供了使用上述液体显影剂的电子照相图像形成方法。

公开(公告)号：US5952048A

公开(公告)日：1999-09-14

申请号：US898387

申请日：1997-07-22

申请人： Kazuo Tsubuko ,  Nobutaka Kinoshita ,  Tsuyoshi Asami ,  Akihiko Gotoh ,  Kazuhiko Umemura ,  Kazuyo Mizuno ,  Makoto Okawara

发明人： Kazuo Tsubuko ,  Nobutaka Kinoshita ,  Tsuyoshi Asami ,  Akihiko Gotoh ,  Kazuhiko Umemura ,  Kazuyo Mizuno ,  Makoto Okawara

IPC分类号： B41J2/02 ,  B41J2/06 ,  C09D11/00 ,  B05D5/06 ,  C09D11/02 ,  C09D11/10

CPC分类号： C09D11/36 ,  B41J2/02 ,  B41J2/06 ,  B41J2002/061

摘要： An ink composition contains a carrier medium and charged particles containing a coloring agent, which ink composition satisfies at least one condition of condition A or B: condition A that the specific charge quantity of the charged particles is in a range of 10 to 1,000 .mu.C/g with a positive or negative polarity; and condition B that the specific resistance of the ink composition is 10.sup.10 .OMEGA.cm or more; and ink-jet recording methods using the ink composition are proposed.

摘要翻译： 油墨组合物含有载体介质和含有着色剂的带电粒子，该油墨组合物满足条件A或B的至少一个条件：条件A，带电粒子的比电荷量在10〜1000μm的范围内 / g，正极或负极; 和条件B，油墨组合物的电阻率为1010Ω·cm以上; 并提出使用该油墨组合物的喷墨记录方法。