Rikagaku Kenkyusho

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01S DEVICES USING STIMULATED EMISSION587
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 1254
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 165
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
C12N MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF 1166
 
  
 
C25F PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR 117
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 1132
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1127

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5953154 Optically parametric oscillator and wavelength-tunable laser systemApr 29, 97Sep 14, 99[H01S, G02F]
5936981 Wavelength selectable laser oscillator in wavelength tunable laserApr 29, 97Aug 10, 99[H01S]
5923685 Wavelength selectable laser oscillator in wavelength tunable laserApr 29, 97Jul 13, 99[H01S]
5835512 Wavelength selecting method in wavelength tunable laser and wavelength selectable laser oscillator in wavelength tunable laserDec 19, 96Nov 10, 98[H01S]
5734666 Method for selecting wavelength in wavelength-tunable lasers and laser oscillators capable of selecting wavelengths in wavelength-tunable lasersNov 09, 95Mar 31, 98[H01S]
5639363 Apparatus and method for mirror surface grinding and grinding wheel thereforeFeb 14, 95Jun 17, 97[C25F]
5547414 Method and apparatus for grinding with electrolytic dressingAug 23, 94Aug 20, 96[B24B]
5322854 Reveromycin A, method for preparing the same, and antitumor agent and antifungal agent comprising the sameFeb 06, 92Jun 21, 94[A61K]
5308704 Cell adhesive material and method for producing sameAug 19, 92May 03, 94[B32B]
5283189 .beta.-galactosidase from Thermus spAug 09, 91Feb 01, 94[C12N]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6138393 Apparatus for formation of visual sense effectExpiredOct 07, 96Oct 31, 00[G09F]
6134818 Apparatus for formation of visual sense effectExpiredOct 07, 96Oct 24, 00[G09F]
6113464 Method for mirror surface grinding and grinding wheel thereforeExpiredNov 01, 96Sep 05, 00[B24B]
5945204 Multilayer film structure for soft X-ray optical elementsExpiredJan 17, 96Aug 31, 99[C23C]
5929778 Data carrier systemExpiredNov 09, 95Jul 27, 99[H04Q]
5888805 Detecting apparatus for monitoring culture broth in bio-reactorExpiredMay 28, 97Mar 30, 99[C12M]
5851297 Method and apparatus for preparing crystalline thin-films for solid-state lasersExpiredDec 17, 96Dec 22, 98[C23C]
5819008 Mobile robot sensor systemExpiredJun 14, 96Oct 06, 98[G05D]
5808256 Method of controlling a photoreaction with a laser beamExpiredJan 22, 97Sep 15, 98[C07B]
5756128 Agricultural chemical preparations and method for preparing sameExpiredJan 31, 97May 26, 98[A01N]
5717214 X-ray beam position monitor and its position measurement methodExpiredApr 05, 96Feb 10, 98[G01T]
5714850 Insertion device for use with synchrotron radiationExpiredFeb 01, 96Feb 03, 98[H01J]
5645638 Method and apparatus for preparing crystalline thin-films for solid-state lasersExpiredJan 29, 96Jul 08, 97[C30B]
5640112 Clock signal distributing systemExpiredDec 02, 94Jun 17, 97[H03K]
5611162 Apparatus for formation of visual sense effect and method for formation of visual sense effectExpiredJul 26, 94Mar 18, 97[G09F]
5610152 Anti-obesity agent 4-cholesten-3-oneExpiredJan 11, 95Mar 11, 97[A61K]
5552287 Monoclonal antibody specific for antigens in mouse inbred strainsExpiredJun 16, 94Sep 03, 96[G01N]
5476931 Process for preparing 3-deoxy-B-D-threo-pentofuranosyl nucleosidesExpiredApr 02, 92Dec 19, 95[C07H]
5470962 Oligosialyl-1,2-dialkyl-sn-glycerols and synthetic intermediates for their preparationExpiredSep 07, 93Nov 28, 95[C07H]
5420121 Use of 4-cholesten-3-one as an anti-obesity agentExpiredJun 17, 94May 30, 95[A61K]

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