公开(公告)号：US5611388A

公开(公告)日：1997-03-18

申请号：US298611

申请日：1994-08-31

申请人： Hirofumi Fukuoka ,  Junzou Fujiya ,  Yoshiaki Uena ,  Akihiro Nakano

发明人： Hirofumi Fukuoka ,  Junzou Fujiya ,  Yoshiaki Uena ,  Akihiro Nakano

IPC分类号： B22C9/06 ,  B22D18/04 ,  B22D33/04

CPC分类号： B22D18/04 ,  B22C9/061

摘要： A casting mold for a low-pressure casting apparatus can be opened and closed and is closed to form therein a cavity which is filled with molten metal to form a cast product. The casting mold includes an upper mold of metal, a lower mold of metal and a sand mold which is disposed between the upper and lower molds and forms a part of the cavity. A top wall of the cavity is formed by a lower surface of the upper mold, at least a part of a side wall of the cavity is formed by the sand mold so that the upper mold contacts with the molten metal filled in the cavity in a larger area than the lower mold.

摘要翻译： 用于低压铸造设备的铸造模具可以打开和关闭并且关闭以在其中形成填充有熔融金属以形成铸造产品的空腔。 铸造模具包括金属上模，金属下模和砂模，其设置在上模和下模之间并形成空腔的一部分。 空腔的顶壁由上模的下表面形成，空腔的侧壁的至少一部分由砂模形成，使得上模与填充在空腔中的熔融金属接触 比下模具面积大。

公开(公告)号：US5573689A

公开(公告)日：1996-11-12

申请号：US594156

申请日：1996-01-31

申请人： Hirofumi Fukuoka ,  Yoshiharu Konya ,  Masanori Fukuhira ,  Ichiro Ishizaka

发明人： Hirofumi Fukuoka ,  Yoshiharu Konya ,  Masanori Fukuhira ,  Ichiro Ishizaka

IPC分类号： B01J8/18 ,  B01J8/24 ,  C01B21/06 ,  C01B21/064 ,  C01B21/068 ,  C01B21/072 ,  C04B35/584 ,  F27B15/00 ,  F27B5/14

CPC分类号： C04B35/584 ,  B01J8/1836 ,  B01J8/1872 ,  C01B21/06 ,  C01B21/0641 ,  C01B21/0682 ,  C01B21/0722

摘要： In a fluidized bed reactor for preparing a metal nitride by feeding metal powder and a non-oxidizing gas containing N.sub.2 or NH.sub.3 into a reaction tube (1) to form a fluidized bed (2) therein and heating the fluidized bed for nitriding the metal powder, an envelope (11) encloses the reaction tube (1) for preventing the surrounding air from entering the reaction tube. A heater (9) is disposed outside the envelope (11) for heating the fluidized bed (2) to 1,200.degree. C. or higher. The envelope prevents penetration of the surrounding air into the reaction tube and also prevents deterioration of the heater and surrounding components by scattering of metal fines. The reactor ensures safe operation to prepare metal nitride powder of high purity on an industrial scale.

摘要翻译： 在用于通过将金属粉末和含有N 2或NH 3的非氧化气体进料到反应管（1）中以在其中形成流化床（2）而制备金属氮化物的流化床反应器中，并加热流化床以使金属粉末渗氮 ，封套（11）包围用于防止周围空气进入反应管的反应管（1）。 将加热器（9）设置在用于将流化床（2）加热到1200℃以上的外壳（11）的外侧。 外壳防止周围空气渗透到反应管中，并且还防止加热器和周围部件由于金属细粉的散射而变质。 反应器确保安全操作，以工业规模制备高纯度的金属氮化物粉末。

公开(公告)号：US5414443A

公开(公告)日：1995-05-09

申请号：US944025

申请日：1992-09-11

申请人： Yoshiharu Kanatani ,  Hirofumi Fukuoka ,  Shigeyuki Uehira

发明人： Yoshiharu Kanatani ,  Hirofumi Fukuoka ,  Shigeyuki Uehira

IPC分类号： G09G3/20 ,  G09G3/36 ,  H04N3/12

CPC分类号： H04N3/127 ,  G09G3/2011 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3659 ,  G09G3/3677 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/027 ,  G09G2310/0283 ,  G09G2310/0289 ,  G09G2320/0247

摘要： A drive device for driving a matrix-type LCD apparatus comprises a voltage signal supply means for outputting a plurality of voltage signals with different levels. The voltage signals have alternately positive and negative levels with respect to an AC reference voltage applied to a counter-electrode of the LCD apparatus. The AC reference voltage is approximately 180.degree. out-of-phase with the voltage signals. The drive device also comprises a signal electrode drive means which selects one of the voltage signals depending upon an input digital video signal, and which supplies the selected voltage signal to a signal electrode of the LCD apparatus.

摘要翻译： 用于驱动矩阵式LCD装置的驱动装置包括用于输出具有不同电平的多个电压信号的电压信号提供装置。 电压信号相对于施加到LCD装置的对电极的AC参考电压具有交替的正电平和负电平。 交流参考电压与电压信号相差180度左右。 驱动装置还包括信号电极驱动装置，该信号电极驱动装置根据输入的数字视频信号选择电压信号中的一个，并将所选择的电压信号提供给LCD装置的信号电极。

公开(公告)号：US5232677A

公开(公告)日：1993-08-03

申请号：US647142

申请日：1991-01-29

申请人： Hirofumi Fukuoka ,  Mutsuo Shimizu ,  Hidemitsu Ochiai ,  Hideaki Shimizu ,  Masanori Fukuhira

发明人： Hirofumi Fukuoka ,  Mutsuo Shimizu ,  Hidemitsu Ochiai ,  Hideaki Shimizu ,  Masanori Fukuhira

IPC分类号： C01B21/068

CPC分类号： C01B21/0682

摘要： Silicon nitride powder is produced in two steps, by supplying metallic silicon powder to a fluidized bed composed of silicon nitride and nitrogen or ammonia gas where primary nitriding reaction is effected until the silicon powder is nitrided to an amount of at least 50% and transferring the nitrided product from the fluidized bed into a moving bed where secondary nitriding reaction is effected for nitriding the unreacted silicon with nitrogen or ammonia gas. This method is adapted for manufacture on a commercial scale because the silicon nitride powder thus obtained is consistent and has a very high degree of nitriding and a minimal variation in quality.

公开(公告)号：US5111195A

公开(公告)日：1992-05-05

申请号：US470623

申请日：1990-01-26

申请人： Hirofumi Fukuoka ,  Yoshiharu Kanatani

发明人： Hirofumi Fukuoka ,  Yoshiharu Kanatani

IPC分类号： G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3688 ,  G09G2310/0248 ,  G09G2330/021 ,  G09G3/2011

摘要： A driving circuit for a matrix type display device in which a plurality of picture elements are arranged in a matrix is disclosed. The driving circuit comprises a video signal output circuit for supplying video signals through output portions to the display device at each horizontal scan. The video signal output circuit comprises for each of the output portions: a comparison circuit for comparing the level of a video signal to be output, with the level of the output portion which is caused by the video signal output at the previous horizontal scan; and an output level control circuit for, when the level of said video signal to be output is higher than the level of the output portion, raising the level of said output portion to the level substantially identical with the level of the video signal to be output, and, when the level of said video signal to be otuput is lower than the level of the output portion, lowering the level of said output portion to the level substantially identical with the level of the video signal to be output.