Patents by Inventor Kenji Kikuchi

Kenji Kikuchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus of producing partial-area mask data files
    Patent number: 6444483
    Abstract: A full area of a semiconductor integrated circuit is divided into unit areas, a mask data file for use in a beam exposure system or an inspection apparatus is produced based on CAD data of the full area, full-area header information in which a starting address of a mask data of each unit area relates to positional information on said unit area, partial-area header information corresponding to each of partial areas obtained by division of the full area is produced based on the full-area header information and mask data of the partial areas are extracted from a mask data of the full area based on the partial area header information to produce the mask data files corresponding to the partial area header information.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: September 3, 2002
    Assignee: Fujitsu Limited
    Inventors: Masahiko Minemura, Tomoyuki Okada, Ryo Tsujimura, Kenji Kikuchi, Yoshimasa Iiduka
  • Layered catalyst composition and processes for preparing and using the composition
    Patent number: 6280608
    Abstract: This invention relates to a layered catalyst composition, a process for preparing the composition and processes for using the composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core composed of an outer refractory inorganic oxide such as gamma-alumina. The outer layer has uniformly dispersed thereon a platinum group metal such as platinum and a promoter metal such as tin. The composition also contains a modifier metal such as lithium. The catalyst composition shows improved durability and selectivity for dehydrogenating hydrocarbons.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: August 28, 2001
    Assignee: UOP LLC
    Inventors: Robert H. Jensen, Jeffery C. Bricker, Qianjun Chen, Masaru Tatsushima, Kenji Kikuchi, Masao Takayama, Koji Hara, Isao Tsunokuma, Hiroyuki Serizawa
  • Layered catalyst composition and processes for preparing and using the composition
    Patent number: 6177381
    Abstract: This invention relates to a layered catalyst composition, a process for preparing the composition and processes for using the composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core composed of an outer refractory inorganic oxide such as gamma-alumina. The outer layer has uniformly dispersed thereon a platinum group metal such as platinum and a promoter metal such as tin. The composition also contains a modifier metal such as lithium. The catalyst composition shows improved durability and selectivity for dehydrogenating hydrocarbons.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: January 23, 2001
    Assignee: UOP LLC
    Inventors: Robert H Jensen, Jeffrey C. Bricker, Qianjun Chen, Masaru Tatsushima, Kenji Kikuchi, Masao Takayama, Koji Hara, Isao Tsunokuma, Hiroyuki Serizawa
  • Apparatus for spin coating, a method for spin coating and a method for manufacturing semiconductor device
    Patent number: 6033728
    Abstract: The invention relates to an apparatus for spin coating for forming a resist film, an SOG film, a polyimide film, and the like in manufacturing semiconductor devices and has the object of forming a coated film with a specified and uniform thickness even in case that an amount of discharged coating solution is a little. An apparatus for spin coating of the invention comprises a rotatable table for placing a wafer, a coating solution discharging means which is set above the rotatable table and discharges a coating solution on the surface of the wafer, and a solvent discharging means which is above the rotatable table and discharges a solvent capable of dissolving the coating solution.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: March 7, 2000
    Assignee: Fujitsu Limited
    Inventors: Kenji Kikuchi, Tomoaki Muramatsu
  • Method of producing carbon source for citric acid fermentation
    Patent number: 4040906
    Abstract: A sugar hydrolyzate, containing both glucose and fructose, is mixed with calcium hydroxide, and a fructose addition precipitate is recovered. The residual liquor is neutralized, calcium ions are removed, and then the liquor is used as a carbon source for citric acid fermentation.The present method may supply very inexpensive fructose to the market.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: August 9, 1977
    Assignee: Ajinomoto Co., Inc.
    Inventors: Ryosuke Uchio, Kenji Kikuchi, Soichiro Asai, Kenichi Yarita
  • Process for producing pyruvic acid by fermentation
    Patent number: 3993543
    Abstract: Improved method for producing pyruvic acid by fermentation of pyruvic acid producing mutants of the strain Candida lipolytica which require methionine and thiamine for growth.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: November 23, 1976
    Assignee: Ajinomoto Co., Inc.
    Inventors: Ryosuke Uchio, Kenji Kikuchi, Hitoshi Enei, Yoshio Hirose